maximum wireless speed config

Jim Thompson jim
Tue May 4 18:54:58 PDT 2004


On May 4, 2004, at 4:17 PM, Denis Vlasenko wrote:

> On Friday 30 April 2004 18:37, Andy Barlak wrote:
>> What has me really tied up is that a week ago, a transient 
>> configuration
>> setup produced ping times of about 1.2msec, and iperf results of 
>> 11Mbit
>> for the master-managed AP-STA setup.
>> (transient means I can't reproduce the configuration again.)
>
> Thats cool, because nobody ever had 11Mbit over 802.11b.
> Which is expected. It's a protocol limitation. 802.11b
> require ACKs to be sent for each frame.
>
> The highest speed ever reported is ~700 kbytes/s AFAIK.

In theory, with UDP, one client associated with one AP, and 
maximally-sized broadcast frames (group addressed frames 
(multicast/broadcast) don't require ACKs), you can get 7.74Mbps of that 
11Mbps channel.

See also:  http://www4.ncsu.edu/~jjun/index_files/full_tmt.pdf





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