Maximizing 802.11b throuput

Bruno Randolf br1 at 4g-systems.de
Thu Mar 13 10:45:35 EST 2003


hello!

my tests have shown 4-5Mbps with 2 stations in ad-hoc mode and 1-2Mbps with an 
access point. thruput decreases when there is more than one simultaneous 
stream: about 2Mbps in SUM(!) in ad-hoc mode with 5 cross traffic streams. 
with access points the the sum of all thruput stays quite constantly around 
1-2Mbps.

using RTS improves performance when there are more nodes on the same channel.

bruno

On Thursday 13 March 2003 14:24, André Luiz Ribeiro Moutinho wrote:
> Hi,
>
> I am implementing a realtime video streamming application using
> 802.11b in order to transmit video data.
> Transmitting MJPEG 320x240 at 30fps and 40% quality results a
> 3Mbit/s total bandwith. When I try to increase the video data
> bandwith (for instance, rising JPEG quality), the radio channel starts
> failing to transmit all video information. I would like to know what
> is the REAL 802.11 data transmittion throuput (4 or 5Mbit/s ??) and
> what could be done in order to maximize the data throuput. For instance,
> trying to optimize the transmitted data block size.
> I need to use the maximum data bandwith available in order to transmit
> the maximum mount of video sessions possible.
>
> Thanks a lot,
>
> Andre Moutinho




More information about the HostAP mailing list