Re: Delay and data throughput on 802.11b WLAN with 50 nodes

"Andreas" <soror78@xxxxxxxxxx> wrote in message
news:1131212076.424116.269190@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> hi stephen,
>
> thanks for your answer. you're right about the ACK. I didn't include it
> in the calculation because i thought the ACK Packages are very small.
>
> I think we will transmit the commands with TCP and then send a UDP
> broadcast to start all 50 robots simultaneously. With "intelligent"
> robots with integrated collision detection i hope we will only need 2
> or 3 messages per robot and per second. I hope we will get this through
> the WLAN.

sounds like a scary amount of traffic for this - you are at 150 msg / sec
(ignoring ACKs)
>
> Is there an important difference between broadcast and IP multicast?

not for this, unless you want to use IGMP like suppressed announcements.

>
> Regards,
>
> Andreas
--
Regards

stephen_hope@xxxxxxxxxxxx - replace xyz with ntl


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