Re: [manet] Selective Acknowledgement

[David Young <dyoung@pobox.com>]

On Tue, Jan 27, 2004 at 09:19:58AM +0100, joan.martin@philips.com wrote:
> Hi,
> 
> Does anybody know any literature about selective acknowledgement applied 
> to manet (802.11). Concretely, selective acknowledge in response to a 
> broadcast transmission.
> 
> The IEEE 802.11 MAC specification does not allow acknowledging on 
> receiving a broadcast transmission. Therefore how could I design a 
> mechanism which ensures me that at least one neighboring node has received 
> the broadcast message (imagine a critical application, e.g. car accident 
> warning, in which you cannot permit a broadcast message "to be lost on the 
> air")

Do you have your choice of 802.11 radio, or do you have to use a
particular chip?  How timely must the acknowledgements be?  Presumably
some of the broadcast's receivers could be hidden from each other?

Dave

-- 
David Young             OJC Technologies
dyoung@ojctech.com      Urbana, IL * (217) 278-3933

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