Chonggang Wang wrote:
Yes. Baud rate is bit per second. I set 115200 (115.2 Kbps) in my experiment.
I got 35 Kbps (bit per second) throughput at receiver side.
since 35 is far smaller than 115.2, the bottleneck is not the serial
port, it is in air-interface.
The MAC in the mote that outputs to serial knows the serial rate is
115Kbps, so that could be affecting what it attempts.
collisions get retried by the radio-stack and MAC code... So like Phil
says, backoff explains it, and it is backoff from collisions related to
115kbps top speed....I bet...
John Griessen
Ecosensory ecosensory.com
Austin Texas
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