Wi-Fi 8 is the first wireless upgrade in years that isn't chasing speed
xda-developers.com
xda-developers.com
In comparison, DECT has been flawless in the same space. Set and forget, just works. I always wondered if we could have a kind of DECT proxy on the LAN, and have the ERP application talk to that proxy using DECT... I mean, it's a few EANs and stuff, DECT could handle this easily.
I do kind of want to play with this.
Maybe ok for your garden camera where the authorities just don't care. But no go for any industrial usage.
For example, with the 1% duty cycle limit it is totally fine to have a transmission take 30 seconds - provided you only send 1 transmission an hour. Want to send one transmission per minute? You'll have to get your transmission time down to 0.6 seconds. And your transmission speed is inherently linked to your data rate, and by extension your signal range.
There's no one-size-fits-all solution possible here. Either the user has to give it some information about their specific use case, or it'll have to stick to the absolute most pessimistic limits.
If you need consistent MB range traffic for cameras I wouldn’t advise it but for low (5kbs) traffic it can be attractive. A few thousand bits can encode quite a bit of information. Don’t be fooled by the “kbs”.
Really there should be a world wide 900-1000MHz ISM band.
I was so excited when I discovered it a few months back after struggling for years to set up reliable wifi for outdoor robotics, only to realize we can't have nice things. The struggle continues.
The AP does not have visibility into what the client actually sees, and no, a coordinator that has knowledge what the APs see isn't that much better.
Imagine a situation with two APs and a client being in the middle of the two in a RF-impeded situation (i.e. your typical office building). AP1 may "hear" the client better (i.e. it gets a higher RSSI and SNR), but the client may reject it in favor of AP2 because the client sees a better signal coming from AP2 due to reflections, a powerful RF signal from a floor above interfering with the channel of AP1 or God knows what else.
RF is a weird world.
DECT is a much, MUCH more old, simple and robust protocol. Modern signal processing tech can get you insanely far there.
Turns out the 2.4 GHz radio of my router had died (Fritzbox 7590, apparently a common issue), thus forcing 2.4 GHz-only clients to use those other APs.
We have industrial SIMs with our own APN and get a IPSec tunnel to the Telco where we have a dedicated network to see our devices.
But they do use commercial wi-fi devices, albeit with a focus on configuring security correctly.
The AVM Fritz product line of consumer modem/routers all include a DECT modem for registering extra handsets for voice but they have their own proprietary handsets that support TCP/IP over DECT for things like audio streaming or sending extra media like a caller photo.
That said, in theory at the level you're asking for it'd be acceptable to run the system as a single frequency network by using the AP locations as remote radio heads and just not telling the handhelds that there are multiple APs in listening range.
I'd probably aim for using the wifi support mechanisms to dynamically fake nearby APs as "mimo antennas" from the POV of the handheld, but not doing so would also suffice, just transmitting from the one AP that's nearest to the specific handheld/client would already basically do the trick and could probably run with hacked firmware on commodity AP hardware basically turning the entire setup into a soft-MAC with that very software juggling the army of radios.
The setup btw. would not have the clients aware they're dealing with more than one radio on the other side.
You could be forced to ask/ping the client from multiple APs one after another if you've not heard from it in a while and it moved, but otherwise, you just rely on hearing it from multiple APs and tracking it so you don't have to make APs across the facility speak up and risk interrupting other clients that try to get a word in.
Oh, and ban by building ordinance usage of any other Wi-Fi on the channel your doing this on, or that's gonna eventually get you problems with congestion.
It's under 5G standard but for non-cellular connectivity that means you can use it without base-station like Wi-Fi direct. It's geared toward IoT but its data rates are from 1 Mbps up to 1.3 Gbps depending on the operating frequency and the type of modulation being used [2].
[1] DECT NR+: A technical dive into non-cellular 5G (30 comnents):
https://news.ycombinator.com/item?id=39905644
[2] Technology: DECT NR+ [pdf]:
https://www.vdma.eu/documents/d/group-34568/technology_dect-...
Dual SIM Dual Standby (two or more SIMs, one radio) is cheaper, less battery, less space, and usually good enough. It's literally a few dollars, not 200-300.
- DSDA: Dual SIM Dual Active, theoretically can call and do everything on both SIMs simultaneously
- DSDV: Dual SIM Dual VoLTE, can standby on both at all time but can't "use" at the same time
- DSDS: Dual SIM Dual Standby, can standby on both on so long radios don't conflict(3G+4G|4G+5G)
- DSSS: Dual SIM Single Standby, can physically mount two SIMs to just electronically switch betweenWi-Fi: general-purpose, massively interoperable LAN radio → let the client make decisions.
DECT: purpose-built cordless mobility system → tightly specify the radio, handset/base-station behaviour and handover mechanisms.
There is about 10m and a brick wall between my AP and my desk so yeah, a fancy new MCS that can theoretically deliver 25Gbps was just never gonna be useful to me.
Also I've worked on (other non-WiFi) 802.11 products where our competitive edge was all about interference motivation. Our competitors at trade shows would see the demos and say "that's fake, you guys are cheating". So I have the feeling that in general there might be alpha in more resilient wireless links.
It's seriously impressive how it wasnt possible to set per device speed limits or even QoS which has been a thing since like 2007
A very expensive "up to 1000mbps" kit maxed out at ~200 when both devices were plugged into the same outlet. It just got worse with distance.
Rock solid and reliable networking =)
You should get far better performance on 6GHz, though there are harsh power limits in most countries with various ways to enable it which may complicate things. But if you can get full power on 6GHz it should reach 10m no issues at all, and with 320MHz should be at least twice as fast.
If you can also get MLO working (which is not simple) you'd be able to bond another band with it.
I am not sure what that term means, but perhaps you meant "mitigation"?
Note to tech reports: do not EVER quote this metric as it is the most useless piece of information.
Naively, I would assume that would save money on the BOM and make devices more flexible.
Again, naively, why not build and sell consumer-grade 5G access points/routers?
This new WiFi standard is far enough out (2028) that it seems reasonable to fold it into the 6G standard (early 2030s per the article)?
It would be nice if all laptops were suddenly equally capable to WiFi and cellular connections.
I'm not talking about legal differences- laws can always be changed- but rather how bandwidth is allocated. The biggest benefits of cellular comes from:
Verizon owns/controls channel
↓
gNB decides:
"You transmit here."
"You transmit here."
"You get 20 MHz."
"You get these time slots."
Wifi needs to follow listen-before-talk rules: Everybody shares unlicensed spectrum.
AP: "Is anyone transmitting?"
↓
wait
↓
transmit
So at the end of the day, even if you take all the fancy expensive 5G hardware and software algos and shove them into the wifi standard, you still won't get the benefits of 5G.Such as microwave ovens (although my microwave oven does indeed follow the 802.11 spec)
https://wireless.docs.kernel.org/en/latest/en/users/drivers....
Atheros (now Qualcomm) released its firmware source: https://github.com/qca/open-ath9k-htc-firmware
I have many, many these dongles :)
Last year, I saw 1600 Mbit/s from the Internet at a normie's place with an ISP-provided router. Still have a cat 6 cable around the living room but haven't used it in the last 2 years. Not exactly wifi but I routinely get 600-800 Mbit on 5g networks in crowded areas.
Everything with an Ethernet port is wired, wifi is for phones and tablets only (a few UniFi WiFi 6 APS).
Works great!
Internet has never dropped for me while working, family loves the always working NAS streaming via wired Apple TV.
So my only choice was to purchase a third-party router/WiFi. I did not want to make the network more complex, but if my ISP router couldn't provide WiFi, it would need to happen.
So now I have a working WiFi 7 router, and my ISP's device is permanently in Bridge Mode. I went to the hardware store and purchased a bunch of little cable staples, and I nailed up an Ethernet cable from the router to the bedroom. There are 3 desk positions in here that can be reached by Ethernet cable.
Unfortunately, if I am out on the balcony, I normally need to use WiFi, because I can't fully shut the door when a cable is snaking out of it. Also, I picked up a little USB-C-Ethernet dongle for my phone, if worse comes to worst. The bandwidth is great; besides, my downstream is only 100Mbps, so who needs overpowered LAN bandwidth?
If you have a mesh system with more than one access point, your network benefits greatly by using WiFi 7 (or 8, now) as a dedicated wireless backhaul that connects the access points to each other.
Unfortunately IMO WiFi router brand selection is getting increasingly small. I have no issue or problem with using UniFI myself. But it is not something I could recommend to family and friends as they don't know how to set it up. Eero is not available to much of the world outside US. I just wish Apple revive its AirPort Express business.
[1] https://www.nokia.com/blog/advancing-connectivity-with-wi-fi...
I would expect this crowd here to not make these mistakes as ofte. :-)
B is defacto for storage…
Modern wifi is fast enough that using cables is often not required.
Like seamlessly switching between Wi-Fi, nG, Bluetooth, satellite, pigeons, cans-and-wire.. and still having a stable global address? (that you could change later of course)
Roaming improvements are nice, though in practice most firmwares already implement something similar AFAIK? OpenWrt & Ubiquity Unifi devices do, though there is no cross vendor protocol. Curious to see how Wi-Fi 8 handles that. Via the wired backbone?
From my understanding, the ideal solution for roaming would be that all APs identify as the same BSSID, and decide between them who answers a client, while sharing state. Scaling such a system may be hard in crowded environments.
Anyway, I updated to a Wi-Fi 7 router, and it runs warm enough.
That is decidedly not a solution. Neighboring APs necessarily need to be on different channels, to avoid Co-Channel Interference (CCI). An AP doesn't answer just on BSSID but also on a specific channel.
Your router does not respond. Turn it off and on.
This comes close: https://www.getapp.com/all-software/a/breakdown/
One of the core features (MLO) is currently mostly scam. APs/Clients negotiate the protocol (and it shows up in the status) but doesn't it to either increase robustness or bandwidth (by combining/switching between two frequency bands).
Also the driver quality is a huge mess.
(We tested it using the latest generation Cisco Enterprise gear but also with Prosumer stuff like Ubiquiti or TP-Link)
But honestly: we need WiFi-8. It finally brings infrastructure-controlled roaming which is super important for any VoIP service.
Aren't devices with Intel Wi-Fi 7 BE200/BE202 are supporting that?
As well as latest Samsung phones?
But they are the best cards around if you want to play with Wifi-7 on Linux. But always go for the latest wireless-next kernel + firmware blobs. Also they are not compatible with AMD mainboards (go for Qualcomm then).
802.11 r/k/v exists
We basically miss all data (received stations/signal levels from both sides, Bit Rate errors, etc.) for making roaming decisions and then to softly connect them to an AP you want them to be on.
Enterprise WiFi is currently mostly "This is a list of APs you maybe can connect to.. have fun.. if you can connect we pre-seeded the AP with some crypto data, so it doesn't take ages to negotiate. Here's your (more or less friendly) disassoc. Fuck off bye."
It does somehow work for stationary setups - but as soon as you have mobile traffic (like walking around or machines moving) with multiple APs the quality hits the shitter brutally.
Currently this gap is being filled by industrial 5G with dedicated frequencies. It's crazy expensive.
Set your channels to 6/149/37 and the lag will probably vanish. Exactly because of this, I only run those channels, even across multiple APs.
In Europe, you may need to use 44 instead of 149.
There is currently no good way to keep AWDL off other than a script that just turns it off every 200ms, because of course Apple. Also, not always an option with work issued Macs.
No. Just no. That speed is only possible when standing at a Nevada test range, in late spring, on a ladder, holding the router above your head, with a black cat sitting on your left shoulder. Any minor change from those parameters and your speeds will be 30% the theoretical maximum ... maybe 50% if you can only find a grey cat.
Off topic, but that sounds sort of contradictory, or misleading at the very least.
That's how I read it at least.
The 95th-percentile latency and packet-loss targets here seem much more meaningful than another 2x headline speed increase.
My only scepticism is how much of this survives real consumer hardware. Wi-Fi 6 had things like OFDMA that sounded great on paper, but support/implementation was pretty uneven.
There’s so much interference that the package dropout rate is around 40% at 2.4GHz usually.
So having the 5-6 AP is not the problem, then shouting at max power is the problem. Especially “gaming” routers tend to do this.
I'm using 802.11ac and see no need for higher speeds.
Higher speeds automatically means less latency and that does matter, especially if you are into stuff like games where every millisecond matters.