https://www.scafco.com/wp-content/uploads/2017/09/iphone-bac...
I guess since the EP32 does not support it and you need a compatible router you are stuck with normal WiFi.
Also, many people have really, really crappy routers, walls that 5 GHz signals have issues penetrating, and so on.
1) 5GHz modules are more expensive.
2) 2.4GHz has channels 1 - 11 globally, with 12 and 13 in some countries.
5GHz only has channels 32 - 48 globally. Depending on country of distribution it then can support other channels too, but which channels are legal varies significantly. To support those, you need to know which regulatory area you are distributing to. So - additionally to HW being more expensive, you have to have different SKU for different regulatory areas, meaning production runs of different hw - more costs added. Limiting yourself to channels 32 - 48 to claim 5GHz compatibility will just cause you support pain & public image when people will complain your device does not really work with 5GHz.
https://en.wikipedia.org/wiki/List_of_WLAN_channels#5_GHz_(8...
2.4GHz is better for range, all AP/Client supports same frequency on worldwide, cheap, and so on. I suspect that there are few reason to implement both 5GHz and 2.4GHz for IoT devices. Supporting all 5GHz band would increase cost.
https://en.wikipedia.org/wiki/List_of_WLAN_channels#5_GHz_(8...
Go for 3/9 or something in between which would get noise but not significant.
You'd be doing more damage yourself, 120 IoT devices would be kind of fragile if noise is introduced.
And in some imaginary reality where they are: there's almost no scenario where they're going to successfully fox hunt the source of random 2.4Ghz deauth frames.
Flood the entire 2.4Ghz spectrum above EIRP limits, constantly? Maybe visitors will come.
Also seems like some minor changes could avoid the issue entirely. I live in a large building amongst other large buildings and depending on which way the wind is blowing I can see over 100 wifi access points, not to mention devices.
https://archive.curbed.com/2018/12/4/18125536/real-estate-mo...
https://crosscut.com/2015/04/the-new-seattle-where-everythin...
a "one plus five" looks like this, structurally: https://1.bp.blogspot.com/-DZ2BLyticQE/VRMjELb1DYI/AAAAAAAAX...
Since 2.4 GHz goes through wood fairly effectively to moderate distances, it's a total half duplex CSMA hell...
One possible mitigation if you have older 2.4 GHz only devices is to run your own wifi on a 20 MHz channel, sacrificing throughput for better SNR. As channel sizes get narrower it cuts through the noise floor a little bit better. And of course to use your own choice of the cleanest 5.x GHz channel for everything you care about.
This particular IoT setup doesn't seem to be causing any prohibited intereference, all the devices seem to be working as designed within the allowed limits and they can work equally (i.e. your device and your neighbour's 120 devices each can get 1/121th of the usage), so the neighbour being informed that you'd like to use more of the spectrum does not change anything.
https://www.google.com/search?channel=fs&client=ubuntu&q=fiv...
cheap 2.4 GHz spectrum analyzer: https://www.youtube.com/watch?v=wc47pkUsLe8
https://help.ui.com/hc/en-us/articles/204950584-airMAX-Using...
you can see how bad 2.4 GHz is using an old ubiquiti rocket m2 802.11n 2x2 radio ($70) and a small $85 omni 2x2 antenna.
https://www.youtube.com/watch?v=QNxXyP6QOqo
or any of the older 802.11n 2.4 GHz based ubiquiti products such as the nanostation loco m2 mentioned in the video
If only wired ethernet was considered standard wiring like coax and power outlets, and installed during construction.
I guess newer houses might be expecting everything to be WiFi now, though.
https://www.cbc.ca/news/canada/british-columbia/bc-langley-f...
https://twitter.com/JSchenderling/status/1384384802715934721...
The only thing keeping them safe is fire sprinklers. There's been many infernos that burned the things to the ground when sprinklers failed.
First of all: the linked page doesn't scroll on an iPad - they are trying to be clever with scrolling and it actually breaks scrolling.
Secondly: they take pushing their app to an insane level: none of the links works, they all point to 'Get the app'. This fact alone has just gained the site a place in my DNS blackhole.
Archive.org link - that actually works better than the original site: https://web.archive.org/web/20210420050504/https://devrant.c...
[0] https://devrant.com - "Share and bond over successes and frustrations with code, tech and life as a programmer"
I agree. Its “use our app”-push is similar to Twitter or Instagram, but these platforms offer a lot of functionality in their apps. Devrant on the other hand, seems to be quite simple in functionality. Why would I need to download an app for that?
I've seen people tell me to get a 5GHz capable AP and a dongle. But this shouldn't be needed. I already own a hAP AC3 (MikroTik) but to the way our house is built (it's pretty much all solid brick between each room), 5GHz doesn't go that far, so I'd need to buy an AP for pretty much every room. When sitting behind my desk (about 2M from my AP), everything is fine and dandy but when I leave the room, 5GHz basically dies.
Next, I saw people recommend "working it out with my neighbours" by having them turn down the power or use cables to hook up all the APs (I even offered to pay for all the cabling myself), but they are not willing to do so. And just saying "Would you stop using all this smarthome junk so we can have a decently working wifi" also isn't really gonna cut it for them.
And finally, I saw a comment or two to just jam the living shit out of it, but well... I'd rather not get my own ass into legal trouble for this.
You can't have the cake and eat it too: 2.4 GHz propagates through walls, so you share the spectrum with your neighbors; 5 GHz is much more easily blocked by walls, but that also means you have the (much larger) spectrum to yourself.
> 5GHz doesn't go that far, so I'd need to buy an AP for pretty much every room.
Well, for every room that you need a stable connection in. If you can see your neighbor's signals that well through (presumably) multiple walls, I suspect that you'll also be able to cover at least one extra room per 5 GHz AP so that calls don't drop while you're moving between rooms.
And yet, it sure sounds like it is! If your neighbor won't change the situation, and your outcomes are entirely dependent on them or you doing so, then you're left with taking an action that you normally wouldn't have to.
Or, depending on your needs, perhaps you can use Powerline adapters to some rooms.
Don’t think you’ve got much of a choice if you value your sanity.
You could also try powerline adapters in combination with 5ghz
Another route might be using ethernet over power lines, and then have 5g points in rooms that need it.
But essentially , everywhere I need to do things that require bandwidth, I just pull 1gb ethernet cable. Sure it's not as convenient, and pulling cables is a pain, but once you do those things it just works.
Wireless has been great for a while, but I found it does not scale the way I would like it to, especially given the explosion of wireless devices out there.
then fuck em, pwn their network.
My laptop picked up about 140 AP's from the couch. I could copy files from my NAS over Wi-Fi at a blistering 6KB/s! Sometimes bursting to 25KB/s
Long story short, this modem will reset itself and require me to not only become aware that it's once again broadcasting the "xfinitywifi" hotspot, but to also redownload the xfinity app, configure the app with my information and try to remember where they buried the setting to disable this "feature". After disabling it somehow takes up to 24 hours to actually happen....
Indeed they were surprised I DIDN'T want a Comcast modem, instead opting for a Surfboard/PFsense combo setup
(at a company I used to work at we once had to abandon a 5GHz product when we discovered that an appreciable numbers of customers would take it home and not be able to make it work reliably - it would have been a support nightmare)
I've hit 'forget' on my home 5Ghz network because it's just unstable upstairs, and my phone isn't smart enough to pick the network with the stronger signal for some reason.
the new townhouses being built near by in MV are exactly this.
If someone came at me with a deauth attack I would be incredibly amused and probably make a new friend.
* lrvick knocks on guilty neighbor's door.
* guilty party's non-technical brother answers
Brother: Yeah?
lrvick: Hey, I notice you guys have an antenna on the east side of your roof pointed at my house, is that yours?
Brother: Huh? No, that's my sister's.
lrvick: Is she around? It's messing with my Netflix and I'd like to talk to her about it.
Brother: Oh, um, yeah. hold on...
* Brother leans away from door into house and shouts inside, "Hey sis! Neighbor at the door for you!"
* lrvick waits.
* Guilty sister walks up to door
Sister: Can I help you?
lrvick: Is that your antenna on the east side your roof?
Sister: Yes.
lrvick: So, the past month, someone's been messing with my wifi with deauth attacks.
Sister: *mildly indignant* I'm not doing that.
lrvick: Well, The past week, I spread a bunch of sensors around my property and a couple of the neighbors and logged the 2.4Ghz spectrum for the area. I correlated everything and triangulated the attacks to that antenna of yours, which just so happens to be aimed at my house. Here's the logs and spectrum heat maps if you'd like to see.
* lrvick offers Sister the printouts he brought with him.
* Sister takes, looks them over and starts to get that embarrassed flush in the cheeks and ears characteristic of someone who knows they're busted.
Sister: I mean --
lrvick: I'm actually not even mad. It's kind of illegal, but it's also ballsy and I respect that. But I'm not the kind of person to go snitching to the FCC first thing. You do know if we're competing for spectrum, you can come talk to me, and we can coordinate a plan over a couple beers, right?
* Three months later lrvick and Sister are co-presenting a talk at the local hackerspace on counterattacks to deauth attacks.
WiFi goes two ways - the AP talks to the client, and the client has to talk back. Clients don't have the high transmitting power that an AP has, and actually the AP won't need this high power. After all, if you use a bullhorn to reach your backyard, but the guy over there can't talk back, there is still no communication.
The solution would be to set the AP's to a lower transmitting power, enough to cover the house but not the street.
This is a lot to ask, but.. what are all those things?! (My house has 0..I think)
I agree with your sentiment. It requires communication. De-authing is not going to solve the problem just make enemies if they work out what the OP is doing.
It does seem like getting some 5GHz hardware would be a relatively straightforward solution but the poster is unwilling to do that. My take is if you want good quality home networking then you need to be willing to pay the price to get that within the constraints of where you live: sometimes that means spending more money than you might like. Such is life.
I'd like to know what 120-ish devices they're running. That's a lot of devices.
To me, the problems seem to be those devices use too many channels, continously?
I recently tried checking some TPMS sensors that I bought with rtl_433 and was amazed by how many sensors can get along just fine in my 10 story appartment buiding, but those messages are really short and only transmitted once every couple of minutes.
What does that gain exactly? The 5ghz band is so crowded around my apartment that most devices can't connect at all. Is there some fundamental reason it should work better?
I used to fantasize as a kid about doing this to a satellite. Phased array of cheap magnetrons and all that. I doubt that would work though.
You mean... basically everyone?
It's an expensive, possibly inconvenient solution, but from the perspective of RF spectrum it has a high probability of success; your 2.4 GHz neighbor is unlikely to appear at 6 GHz for some time, and even then the reduced 'range' of 6 GHz will work in your favor.
1. https://www.cnet.com/home/internet/wi-fi-6-devices-top-compa... (the distinction between 6 and 6E is crucial; you want 6E)
All of those dinky cheap shit little IoT devices DON'T USE IT. They're all on 2.4Ghz.
5Ghz promised more spectrum and more usability and mostly gave that to us. Not quite as good range but it's great... IF we replaced everything we had that used 2.4Ghz.
We're still waiting for legacy devices to die... and new devices to stop using 2.4Ghz before that can happen.
And now you're suggesting 6E? Gonna take a while.
And it's pretty obvious the person ranting doesn't feel this problem rises to the issue of "spend $50 to get a 5ghz router and dongle".
Step 1 would be to use APs that are connected with ethernet instead of Mesh-type APs. That would greatly reduce the amount of data that needs to be transmitted (with mesh, your signal needs to be repeated multiple times. With ethernet it's just transmitted once)
Step 2 would be adjusting power output of each AP. If the neighbour has multiple APs, they probably don't each need to run on full power.
Step 3 would be looking for devices that transmit a lot of data. I assume most of the 120 devices don't cause a lot of traffic. Maybe there's just a few that cause 90% of the traffic. Maybe the most traffic intensive devices (eg. camera) could be replaced with a wired connection.
I'm assuming the neighbour doesn't know anything about how to optimize Wifi networks, but OP sounds knowledgable, so maybe they could work together to fix the issue.
It can be a Win-Win situation: OP gets a usable 2.4GHz channel, Neighbour also gets better connectivity.
It's possible that the person who's causing the problem doesn't know they're the problem. Like, if the underlying cause of this problem is "not super techno-savvy" then they might not realize what they're doing :)
The only sure fire way to solve this is de-auth.
If not 120, imagine someone with 200 or 1000 devices. At some point you've eaten more than your quota of spectrum and you owe it to your neighbors to stop hoarding IOT devices.
Edit: heh, not believing in scarce resources is peak Orange Site.
Sure, there are scarce resources; and what we're seeing is the expected results of the tragedy of commons for a shared resource.
Usually there are regulations that state your radio devices can't interfere with someone else's. It doesn't matter if they are off-the-shelf type approved devices, you still have to operate them responsibly.
I live in Ireland and there are have a few cases where the local regulator ComReg has intervened when someones wireless networks and devices affected others.
There isn't even a requirement for "802.11-like fairness" on 2.4 GHz, which makes legacy analog wireless headphones that blast the entire spectrum without any listen-before-send policy as legitimate to use as a state of the art 802.11ax device.
I wonder if a dedicated "Wi-Fi only" chunk of spectrum would make sense, but it's not like such rules couldn't be bent by having multiple access points and spreading traffic over these as well.
Our flat is top of the building, we can assume middle is even worse.
We use 5GHz for our WiFi needs which does not penetrate through walls as readily which means we only see 3 other APs.
You would only want the shielded variant on your exterior walls & upper floor ceilings. All you would need to do is make sure you clearly label/color the shielded vs non-shielded drywall appropriately so the construction crew doesn't get em mixed up.
2. This would block your cell phone signal
Ofcourse proper network cables are twisted in pairs and shielded for a reason: so no signal gets in, but also next to none comes out. All the copper in your house essentially acts as one big antenna if you use these powerline communication boxes. You would not believe what the spectrum looks like next to one of these houses. Ask any HAM operator, they have a deeply rooted hate against these things.
Thank goodness they seem to die out slowly since powerline communications doesn't seem to be able to keep up with increasing broadband speeds. As it turns out you need proper network cables to get halfway decent speeds.
https://www.amazon.com/Powerline-Computer-Network-Adapters/b...
Hopefully someone with that much kit would be the kind enthusiast who'd be running firmware that allows you to turn TX power below 100%, but it could just as likely be someone who really likes being able to set their light bulb color from their iPhone.
Now I just wish my neighbors would do the same, but I am not going to be the one to suggest it. If I fix up their networking, I will forever be on the hook if anything goes wrong or they face intermittent outages. Been there, done that, didn't even get a t-shirt. Unpaid network janitor is not something I need to add to my resume.
Perhaps one could make work as a network tech for home users, but I feel like people either don't want to pay for it, or don't care because it's "good enough".
Exactly! That's what it was supposed to be. A wifi-neighborly approach - have your local coverage at minimum needed power and with lower pollution. Except that all wifi-devices would be factory configured at increasingly higher 'medium' power setting.
I had fun with just the worst case scenario - 20m away is a glass condo tower right in front of my windows (the list of loud networks is endless), 100m away is a cell-tower. The RF interference from the cell tower so bad across all bands that I could hear it even in radio speakers. Yet, I still get steady browsing speads over my wifi (loud it is), just not practical NAS speeds, so wire does it.
By contrast, for 5 GHz, turn it to minimum and use one AP per room with wired (Ethernet or MOCA not Powerline) backhaul, and ideally APs with smart DFS.
Of course I run my own network and do those steps my self. (they were nice enough to give me a port with a public IP). Ethernet is still king for many critical but WiFi seems great despite there still being 35+ SSIDs around.
TBH most SSIDs you see have so little traffic 90% of the time so I can't imagine they would decrease the SNR that much (e.g. printer setup networks...) My guess is their neighbor in this case does have a lot of traffic besides the IOT. # of devices and heavy usage just tend to corelate for obvious reasons.
* 800-900 MHz only
* every z-wave device works with every z-wave controller
* z-wave signals travel further
* z-wave requires aes-128
* power consumption is roughly the same as zigbee
* z-wave is an open standard contrary to what you say
Oh and HDMI as well. I spent at least a year of my life working out interoperability issues for a major DVR mfg. If only HDMI certification had been controlled by a single company...
Still overall a shit experience.
http://embedded-computing.com/articles/z-wave-opens-up-as-sm...
I have a few dozen stock shellies in my apt., all controlled via mqtt. All of them are disconnected from the internet. Works well.
Wifi 6 also brings OFDMA which will let stations use much less of the channel at a time (instead of a 20MHZ+ chunk they can just use 2MHZ while other stations use the rest). 2.4GHz being stuck on old Wifi 4 (or worse) devices hasn't helped the situation.
Since 2.4GHz penetrates through walls quite well this has the added benefit of limiting the radius of the coverage and to some extent improving security. But this is not a perfect solution (it's more like an unintended side-effect).
The 5GHz band has lower penetration through walls so leaving it on highest transmit power should be fine.
I found the following article and its comments to be quite helpful: https://metis.fi/en/2017/10/txpower/
I have some rtsp cameras. To keep them from being dumb and randomly roaming to like aps (and overloading the antennas and causing breakups in the stream)I setup different SSIDs on each ap for them so I can control what ap the cameras use and prevent bad roaming decisions.
This also means I have an SSID on each non overlapping 2.4 GHz channel.
However I live on a couple acres. If I’m interfering you are trespassing.
I probably would take a different approach on a higher density area, such as getting an AP with 2 dual-port, dual-polarity antennas dedicated to 2.4GHz and sticking them all on the same AP dedicated to the task, also assuming i would need to cover fewer doors and RSSI wouldnt be an issue.
I have 3 music receivers (for android casting), 7 TVs, weather station, coffee maker, fridge, google home controlled lights (40ish), and other stuff all hardwired. A lot of which I had to modify or build the controllers myself to get them off wifi. The lights all run off POE.
The channels around my house are so busy that in order to make wifi reliable, I have three access points, each one on its own non-overlapping 20Mhz 2.4Ghz channel. Two of them listen in on 80Mhz 5.8Ghz as well. I have them all set to the same SSID, so that my devices just choose whatever they think has the best signal strength. I also ran cat6 to my TV and desktop so that they don't need to go over wifi. I disabled 802.11b/g on all but one of them to keep the amount of overhead down from all the beacon frames.
This is why the Comcast SSIDs everywhere are so annoying. They make the spectrum tangibly worse just by existing. Same thing for wifi printers that broadcast their own AP. Something like 30 APs sending beacon frames is enough to completely trash 20Mhz of 2.4Ghz.
https://www.ebay.com/itm/splice-connector-ideal-85-925-jelly...
I’m angry because I just had a TP-Link (ax20) router go bad on me, so I’d just advise you to avoid that brand but do your research - maybe I just got bad luck :)
It's not the most elegant solution, but it works and allows me to have Inet/WiFi access in and around my house.
Ethernet is the most obvious choice, but it might be a lot of hassle to run Ethernet through the walls or attic or basement and add outlets everywhere you need them.
If you don't mind visible cables, running along the top of walls can work. Here's part of the Ethernet cable that is connecting opposite ends of my house and also speaker cable for on of my rear channels [1]. Ugly, but since when I'm indoors I look down a lot more than I look up, I'm fine with it.
Powerline networking has also been mentioned.
One more alternative to consider is MoCA [2], which is an option if your house is wired for cable TV. The easiest way to think of MoCA is that it is like powerline networking except instead of running Ethernet over your power lines, it runs Ethernet over your cable TV lines. A typical MoCA adapter has two coax ports and one Ethernet port.
You hook up one MoCA adapter at your cable modem between the modem and the wall using the two coax ports on the adapter, and hook up the adapter's Ethernet port to an Ethernet port on the modem. (If you don't have cable internet, same instructions except you only need one of the coax ports on the adapter, and the Ethernet port gets hooked up to your DSL or fiber or Starlink or whatever modem).
Then anywhere else in the house that you want Ethernet and have a coax outlet you hook up another MoCA adapter to the outlet via one of the coax ports on the adapter. The MoCA adapters do their magic, and that Ethernet port is logically on the same Ethernet as your cable modem. You can use the other coax port on that adapter to hook up another coax device, like a cable TV box.
[1] https://imgur.com/gallery/uZ0VvtM
[2] https://en.wikipedia.org/wiki/Multimedia_over_Coax_Alliance
(Warning, literal tin foil hat site)
Get an agreement with your neighbor.
You could have shared mesh network, each (you, neighbor) with it's own vlan. You both win, great coverage and bandwith for both, and your AP's wouldn't fight (and cheaper too, since you need less overall AP's).
If talking is out, then you are only left with suboptimal options. Depending where you live mobile 5/4g might also be an option.
That's not how 802.11 medium access works: If two access points are on the same network, fairness should be identical in the "one AP, two VLANs" and the "two APs/SSIDs" cases.
On the other hand, if the issue is due to super slow legacy devices that just hog airtime, a single modern AP also won't help.
Instead of using 4 seperate AP's for 2 houses, you could set them up to only use 3 or even 2.
And if you use mesh, (that mictotik can) you get benefit of roaming between them.
Not that powerline doesn't work (sometimes), but it radiates and raises the noise floor for all sorts of frequencies, pretty much by design.
It's a bit different on distinct but overlapping frequencies, since detecting a busy medium has to happen on the physical rather than the MAC layer, but if both APs are on the same frequency (and supporting the same maximum speed), the number of APs and SSIDs is mostly irrelevant.
This might change a bit when thinking about MU-MIMO, but I doubt that 2.4 GHz only IoT devices support that.
Not once, since then, have I heard of any of them pulling new cables.
* https://en.wikipedia.org/wiki/Ethernet_over_twisted_pair#Var...
So I wouldn't be surprised if 5GigE, and maybe even 10, could be done on shorter runs.
Unfortunately, the hardware failed, and I didn’t see mass adoption of 60Ghz elsewhere. I hope that tech like local optical or 60Ghz becomes viable.
Yeah, I was really fond of the prototypes a while back that used visible light; those would completely end contention in an apartment complex or office:)
It's a bit like that antijoke: What's white and hurts when it falls on you from a tree? A fridge.
e: The study you linked is also a decade older than the type of construction we're talking about :)
In most areas, the modem rental is $14/month. Adding unlimited is $11/month, for a total of $25/month.
In most areas, adding unlimited to your own modem is $30/month.
Thus, in most areas, switching to your own modem with unlimited costs $5/month more.
That's a feature, not a bug: Less range/wall penetration means less interference from the neighbors.
Not all standards are made like utf8, ie commissioned last minute by a committee, written by two guy over the weekend and adopted by committee the week after. Then used by everyone for decades with little to no changes.
I do think the suggestion of switching to MQTT nicely illustrates the problem though; even relatively technically inclined people frequently have absolutely no idea how their iot devices work.
The problem is that 2.4GHz is noisy as fuck, regardless of who’s making the noise or how. ZWave is only better because they use 900MHz.
But from a theoretical point of view, it need not be.
Older chicken wire for internal walls (ie pre-drywall) is the problem at 5GHz (and I'm sure to a lesser extent at 2.4GHz)
Also circa 1kW not a safe thing to be spraying around, I think fleshy things might well be damaged.
I'm all for 5ghz, but where are you getting an AP and dongle for $50?
Edit: To clarify, I'm skeptical, but if you're serious then links and/or model numbers would be appreciated:)
I'm not skeptical of people being able to get a 5 GHz router setup for that price, but I am skeptical that everyone can make 5 GHz work. There are still devices that are 2.4 GHz only and some apartments where 5 GHz doesn't cut through the walls correctly.
The fridge, washer and dryer have integrated IoT but there'd be little point running just these over power lines.
I have to admit I am biased by doing some microwave band rf engineering stuff professionally, so my perspective on it is perhaps a bit more critical than others. You could say I've seen how the sausage is made...
No. Most devices will still work just fine on Cat 5e for another 10-20 years, running at 1gbps. Cat 6a, running at 10gbps, will be fine for residential for another 25-30 years.
Putting fiber in the walls is an expensive overkill. If you are worried about future proofing, just install conduit with cat 6a.
The vast majority of homes, at least in the US, are nowhere near 1 Gbps internet service, and of those, many are coping with poor WiFi.
P.S. us citizens need to acknowledge that the reason they don't have such a luxury is a lack of competition in ISP space, make that issue nonpartisan, discuss it with everyone who cares, find out why other countries are in a better state? what are the structural differences? are there laws preventing competition? etc
Would it? "Regular" Cat5e has been around for 20 years or so now, and even at "just" 100mbps to 1 gigabit, would be a ridiculously huge upgrade for any home I've ever been inside of, and is still reliably faster than any WiFi device invented thus far.
Unless you have some really esoteric requirements, most homes could just run CAT6a to every room without thinking about it, and sleep soundly knowing they'll reliably get 2 to 10 gigabit (depending on distance) into each room for the next 30 years or so.
https://toolboom.com/en/fusion-splicer-kit-signalfire-ai-9/
It's not something I'd use to splice a very important cable carrying long haul DWDM circuits, but more than good enough for its purpose.
As to whether a house needs fiber to each room? I'm not really sure, at the loop lengths involved, recent cat6 cable has a high chance of working successfully at 2.5GBaseT and 5GBaseT speeds, even if it doesn't qualify and test successfully for 10GBaseT. If you have a really high end 802.11ax 4x4 dual band AP with 2.5 or 5GBaseT interface on it and the switch to support it, in real world use it's unlikely you'll ever get much beyond 1000BaseT speeds to it with real wifi traffic.
And the benefit is tenuous. CAT6a/7 can hit 10Gbps, as long as the run length isn't insane. Even the 11th gen Intel NUCs ship with 2.5Gbps ethernet LAN ports, on-board; outfitting your endpoint devices to breach 1Gbps is far cheaper, especially considering most won't ever breach 1Gbps due to hardware limitations (PS5/Xbox? Ikea Tradfri Gateway?).
Even in the "local network upload/download" case; you've got a server, and you want 40Gbps to that server. Building a file server capable of sustained 40Gbps transfer rates is... insane. Its not easy, nor cheap. It requires multiple PCI-E attached NVME drives in RAID-0, on the latest-gen TR/EPYC platform (for their PCI-E lane count, maybe Xeon is good enough nowadays as well). In 2021, this is still in the realm of "something Linus Tech Tips does as a showcase, with all the parts donated by advertisers, and it still sucks to get going because Linux itself becomes the bottleneck". Remember: A Samsung 980 Pro NVME Gen4 ($200/TB) can sustain somewhere around 6Gbps read; you'd need 6-8 of them, in a single RAID-0. And, realistically, you'd want 12-16 of them in RAID 0+1. A server capable of this is easily in the mid-five-figures.
(and, fun fact, even after you build a server capable of this; Windows Explorer literally cannot transfer files that fast. you have to use a third party program.)
If you're a millionaire outfitting your mansion, then sure, maybe fiber makes sense (due to both upfront cost and length of the cable runs, where sustaining 10Gbps on CAT6a/7 is more tenuous). But I think the assertion that Cat6a/7 will be "obsolete" by 2030 is pretty crazy. Yes, technology will continue to get cheaper and more accessible, and I do think we'll see more fiber providers in tier 1 and 2 metro US areas offer wider 2Gbs and 5Gbs connections, but CAT6a/7 is perfectly capable of saturating this. Just ask yourself: Do you really predict that the PlayStation 6, maybe 2028, will have a duplex fiber port on the back, instead of ethernet? Its 2021, and Microsoft's Xbox download servers can't even download game data at gigabit speeds; they rarely breach 250-500Mbps.
Given the niche that fiber lives in, even taking the position that "its just dual-channel light, one up, one down, nothing can travel faster than light, its the perfect future-proof tech" is tenuous. Whos to say that, in the next twenty years, a consumer standard for fiber is developed which runs quadplex (2 up 2 down)? Or simplex (because its "good enough")? Or the connectors are totally different (which would be the easiest to switch because it may not need new cable runs. maybe).
Oh, also: PoE! PoE is freakin fantastic for prosumer setups. and only available on copper. You can run copper to areas around your house where you want security cameras or other smart devices, and not have to worry about also running power.
I think it's safe to assume that 80+ wireless devices puts you in the top few percentiles. So while not unheard of, not "normal" exactly. And even less common in dense apartment environments where having more than 3-4 rooms is unusual.
I've heard of at least a handful of people that have done this and more this year alone.
A few phones, a computer or two, TV, a few wifi speakers and a miscellaneous light or temperature monitor. It’s not hard to exceed 10.
Having said that, if I had the money, I'd totally automate everything in my house as well. It's just too much fun not to.
Some of IoT device you list I’d actively avoid, but thinks like robot vacuums is really useful.
But for residential use, one of the primary needs to run an ethernet connection to different places in the house is for an 802.11ac/ax (or whatever next generation AP), so fiber doesn't really solve the problem because you still need electrical power for the AP. Obviously one cable and 802.3af/at/bt PoE is a better idea than running fiber powering each AP off AC power wherever it's mounted. Aside from the fact that APs except for very, very expensive enterprise ones don't come with SFP/SFP+ ports, and are generally designed around the concept of being powered from the switch they're connected to anyways.
One of the reasons why i really strongly agree with your points is that in a residential environment it's going to be very, very difficult to really move throughput through an 802.11ac/ax AP that gets anywhere near stressing the speeds of a 2.5 or 5GBaseT connection in the future. I'd be fairly confident in saying that a house wired today with cat6a at sub 50 meter lengths, that tests OK for 5GBaseT, will probably be good for the next 25-30 years.
The primary reason I suspect this is on both ends of the internet delivery spectrum:
First; I think the broad resource allocation focus over the next 10-15 years in the US will be getting "the bottom 80%" up to 100Mbps+ speeds; not getting the "top 20%" beyond 1Gbps. Many of the traditional ground-line companies who would be doing this work (Comcast, Spectrum, etc) are going to be experiencing pressure from emerging wireless technology that can meet these speeds, with beyond-adequate latency, at a fair price, and require far less infrastructure work (Verizon/AT&T/T-Mobile 5G, Starlink) (Starlink is a wild one; you're competing against the gravity well of the planet at that point; what can any of these companies who are "good at digging holes in the ground" do?).
Sitting in my new apartment here, I have AT&T home internet. Averages ~50/10 @ 25ms. I was told on the phone it would be 200 down. "Well, the lines in this building are so long, very old, we ran some tests and we can sell you the 100 plan, but you probably wont get those speeds reliably, you'd be better off on the cheaper 50 plan". Ok, fine. Let me run a speedtest on my phone here, Verizon 5G, 125/50 @ 10ms. The cell companies can just put up a tower, cover hundreds of people with really freakin' good internet, sell it as home internet, what are the cable companies supposed to do against that? Spend thousands of dollars re-tooling the wires in this old building to get "just as good" internet to six people, half of whom won't pay for it?
And the key thing there, these emerging wireless internet technologies won't breach gigabit for decades. Its difficult enough getting them to gigabit.
Part of the reason they won't is on the other end; we're hitting the point, very quickly, where Bill Gates' old misattributed "64k should be enough" quote is becoming true; just not 64k, more like "4K video". Would having 5Gbps internet, instead of 1Gbps (which I had just a few days ago) actually fundamentally change how I interface with content online? Not even close. Even 100Mbps doesn't; there's a point where internet just hits "yup, that's good enough". Cool, I can download Warzone in an hour instead of four hours; its the same thing at the end of the day.
An argument could be made that continuing to push internet forward will open up more innovation in content delivery; whether that's game streaming, 8K video, actually decent quality 4K video, whatever. I think this is tenuous as well, because a big bottleneck for many content providers is networking costs on their end. So much money has been (rightly!) dumped into making our (mostly privatized) nationwide internet backbone "resilient", that suddenly its gotten very expensive to egress data from most hosting providers (big cloud certainly, but even small cloud and colo providers). A high quality 4K video stream can saturate a 100Mbps line; as an end user, that sounds great, I've got a 100Mbps line! But as a service provider, you multiply that 100Mbps by XXX,XXX users, and the numbers start looking really scary. That situation will not improve in the next 1-3 decades; the focus right now is in algorithms to get the same quality in lower bandwidth, not just pushing more bandwidth.
Plus, applications like Game Streaming are both bandwidth intensive and latency intensive. So, double-edged sword, and one that the emerging wireless home internet technologies won't solve well. Having whole-home 40Gbps fiber or a 5Gbps uplink won't help you with Stadia.
Point being, I think arguably for the rest of our lifetimes, the internet as a whole is going to enter a holding pattern while we catch everyone else up with acceptable speeds, improve the width of the backbone (not just the "depth" e.g. fallovers and resiliency), which includes 10-100xing edge distribution, and improve underlying algorithms to reduce the size of content while maintaining quality. All of this will be prioritized above widespread 10Gbps to the home.
I've heard crazy stories about home installers and contractors that didn't really know what they were doing. Everyone starts somewhere, and it's not always with our own home nor with a mentor that actually knows what they are doing.
Or, it's just some person that did it for their own home but went way too far and when they finally got it working (sort of) decided they really didn't want to touch it again for a while, because it was a pain.
Truthfully, either of those sound kinda likely to me.
The number of clients should not be an issue, the half-duplex shouldn't be as well...
a) Fire detectors. 13 units including the central. (Basically one in every room where something may conceivably catch fire.)
b) Leakage sensors in any room with faucets or washers in it - 7 units.
c) Kitchen appliances - 5 (Cook top, two ovens, fridge, freezer)
d) HVAC - 7 units (Central ventilation. Heat pump. A handful of electrical panel heaters.)
It quickly adds up - at least if you live in the boonies where land is effectively free.
I.. ahh, don't think so.
I graduated from Software Engineering in 2003, and recently worked for Canada's biggest Telco for 4 years. I didn't even know half of the IoT's on your list even existed !
[1] https://www.amazon.com/Sengled-Multicolor-2000-6500K-Equival...
There is a wireless LAN in my space, all devices that need connectivity should just use that LAN.
More hubs are more headaches. You need to not lose their power adapters when moving, you need to find a place to put them that is within range of all your devices (may not be as easy as Wi-Fi since they may be using other bands that don't transmit as well or have FCC restrictions, and I already have Wi-Fi mesh network everywhere, you can't easily mesh arbitrary protocols on arbitrary frequencies), you need to set them up using typically a shitty spyware phone app, you need to keep their firmware updated in addition to device firmware. And you also need a hub for every brand of appliance you buy. A Philips Hue hub will not work with some other brand of lights. Whereas you can mix and match hub-less lights and you don't need to have a pile of hubs on a shelf somewhere.
It's definitely not normal.
I don't feel the need to have a single "smart" light bulb or outlet. If I'm turning a light on or off, it's because I'm leaving or entering the room, in which case I'm walking by the light switch anyways.
Cameras in each room? It's a privacy nightmare and I frankly don't trust my equipment, my network, nor myself to set that up safely. Especially if the cameras I own are any indication of how the rest work (hard-wired default passwords, security flaws, upload of FTP credentials to some Chinese business' servers, constant attempts at leaking data through DNS lookups when regular traffic is blocked, etc).
Thermostats and humidity sensors make sense if each room has it's own heaters/air conditioners, though.
Interestingly, at one of the largest Danish chains, it's listed under "American fridges", most of those DO have wifi. If you just pick: "Fridges", then none of them have wifi.
Of course, the first thing I would make sure is that they don't connect to the internet or any wireless network. So I can't imagine the ones the GP is talking about being anything other than a privacy nightmare.
By the way, what happened to data over electricity wires? It's the obvious way to set the home automation stuff.
LAN over electricity wires is a proper pain in the ass. It's not like you can plug in a "router" to one outlet and have network in all others. It only goes to the group that particular outlet is in, so unless your wiring is made in a particular way, which existing houses aren't since it's not an established standard.
One would need a large diversity of products to make it work, what puts it out of reach of any small manufacturer. But why the large home automation sellers insist on their "you must add this huge panel, pass all those wires around, and can't retrofit any new device once the layout is settled" technologies is a mystery to me.
They have backup batteries and form their own mesh network which works independently of the main WiFi.
If the central unit disappears, the detectors still all go off if one is triggered. (Central unit offers app interface and optional 4G fallback network connection.)
But knowing the state of IoT they'd probably take 3-5 seconds after turning on to negotiate connection since the power had been cut, and they'll default to blinding white at full brightness during that time.
I'd much rather have IoT light switches.
That aside, I fail to see any reason why any user would want their cook top to be accessible via an app.
On the contrary, if the cook top is switched on, I very much prefer to be in the immediate vicinity.