This question is w.r.t MAC/PHY in TinyOS 2.0.
By theory, MAC should sense the channel until it becomes idle for some time (e.g. DIFS) and then sends the packet. But we did not find how to control carrier sensing
and backoff (the Backoff interface just provides two events - initial() & congestion() - which seem not relevant).
Or, are these implicitly done in CC2420Transmit.sendCCA()? (assuming cc2420 transceiver)
Then, how can we control the contention strategy - e.g. modify DIFS, change backoff interval, etc. ?
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Regards,
Tie
Regards,
Tie
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