RE: [manet] ARP in MANETS

Hi

I am not a 802.11 expert, but as far as I remember, in IBSS mode there is a
beacon message being sent periodically (every 100-200 millisecond or so) by
mobile stations.
This beacon is not being sent by the same station every time, but each time
other station is picked probabilistically to send the beacon (just number of
milliseconds before next beacon every station must wake up and pick the slot
out of next X slots in which it must transmit the beacon. If another station
transmitted before me - I will cancel the beacon timer).

So basically MAC mechanism guarantees (probabilistically)  that every
station sends beacons periodically and that way no station will stay silent
forever.

Of course, if the station does not use the standard 802.11 MAC and it is
selfish and avoids sending beacons - others will not know about it. But who
wants to communicate with this selfish station anyway. :)

Gabriel Kliot

> -----Original Message-----
> From: yasser lotfy [mailto:yasser.lotfy@lycos.com] 
> Sent: Wednesday, April 26, 2006 3:42 PM
> Cc: manet
> Subject: Re: [manet] ARP in MANETS
> 
> 
> 
> How do you know a "quite" station exist?
> 
> 
> 
> 
> 
> 
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