WMM

RouterOS General
1

I’d like to see WMM supported soon. Because voice and video are starting to be important.

Thanks

2

what’s that?

3

Wireless Multi Media,

http://www.wi-fi.org/OpenSection/wmm.asp

atheros 5413 support it.

4

What’s interesting to think about, all those extensions were developed for in-home usage, connecting broadband routers, PCs, televisions so that video and audio streaming work better than plain 802.11, with better QoS and lower latency etc.
Now MT isn’t in the residential broadband router market yet (except a few diehards like me who use MT to run APs at home :wink: )

But I wonder, would they be applicable outdoors?
I remember a few months back people asking about streaming video P2MP using MT.
Would be interesting to find if there is (a) enough bandwidth/spectrum for a good number of channels, and (b) enough user/operator interest to make this worthwhile.

Of course, the video has to be “legal”, so streaming BBC/CNN/HBO to end customers wouldn’t be allowed unless you have a license to do so … or are a cable company etc.

Another application is wireless CCTV, we already do that with stand-alone video-MPEG-IP converters connected to wireless and laser links.
To be honest, that’s probably a bigger market.

But the architecture needs thinking through, i.e. what’s the source and destination of the video and audio? Already captured, compressed and IP packetised by another box?
Otherwise someone’s going to have to write some PCI video card drivers at MT …

5

my big expectatation is about only voice (VOIP)

and as I can understand from the white paper WMM should work also in outdoor enviroment, without the high jitter we are experiencing with the 802.11b standard we have to comply to sell wireless broadband to the public here in italy.

In fact nstream is a propetary system and we have to offer standard product to be legal. So WMM should be a real improvment from the plain 802.11b

Thanks
Rosario

6

I don’t think Nstreme makes Mikrotik “illegal”, as it affects the packet contents, not the RF transmission.
The only difference is that non-MT users can’t read the packets or connect. :smiley:

7

it is not illegal but it is not usable.

Here, to sell some service to the public, you have to give the public the choice to buy the hardware from different vendors…

We use nstream and mt for backhauling and ap, in backhauling we use nstream on 5.4-5.7 with dfs and tpc, for the ap we must use standard 802.11

8

the release 4 of the Atheros driver could support WMM, so if you have done a port to MT of that driver it should be easy to implement it.

Thanks