I have to concur especially on the client capability factor.
Currently it's wildly over-hyped especially around the expected reach of 60GHz channels and "chasing the numbers" multi-gigabit headlines.
Having a clear numbering to understand which items support the latest standards is potentially helpful but it doesn't replace the 802.11… standards, just an alternative way of promoting them.
In some ways it may be clearer than the confusion caused by the marketing of SATA nnn, and USB n.m since version 3.
It won't make an 802.11ac, n or earlier client any faster, and it won't magically clean up the Wi-Fi spectrum either.
You will still find
- devices being preset to the widest possible channels (even in congested urban settings)
- maximum allowed power (even when multiple APs with lower TX power would work better and have resilience)
- "chasing the numbers" guides rather than what actually performs most reliably over the long term
- articles saying "Wi-Fi so fast nothing needs to be wired in to a LAN anymore"
even when something is right next to a router or switch (this fallacy has been around since 802.11b)
And I say this as a professional networking tech who advocates treating Wi-Fi and Wired both as first-class citizens and making sure both work intuitively for service users rather than one or other being an afterthought.
What we really need is:
- more worldwide spectrum expanding channels in the 2.4GHz band and
- the possibility to bond multiple bands seamlessly without needing to roam between 60 / 5 / 2.4 as the signal drops off with distance or obstacles and
- client timeslots for multiple access controlled by APs
(the original CSMA works surprisingly better than you would expect but capacity still drops off after about 33 clients per band, and we stopped using ethernet hubs for good reasons which still apply)
- new client adaptors that support this while maintaining backwards compatibly
Some of this is coming but we might finally have to sunset 802.11a and b to overhaul things properly.
prlzx on iDNET: VDSL / 21CN at ~40Mbps / 10Mbps
with IP4/6 (no v6? - not true Internet)
Edited by prlzx (Thu 16-May-19 21:14:17)