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The problem differs if you want to check that all
neighbor receives the broadcast or check that at least one neighbor receives it.
For the first problem, in HIPERLAN 1, long time
ago, we proposed a collision signal after each transmission. When a node
receives a corrupted packet it emits a collision signal burst just after the
packet. The signal is just energy and can aggregate with other signals. When the
broadcaster senses signal after its packet transmission, it inferes collision
and retransmits.
In IEEE 802.11 you can use the RTS CTS mechanism
with broadcast. Of course there are no CTS. Therefore if the broadcaster senses
signal after its RTS, then it just backoff transmission.
Philippe
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