RESTRICTED INTERNAL PRELIMINARY DATA PAGE

For the following figures, unless otherwise specified, the following parameters were used.

Preliminary CW MAC

Simple channel. CW=10. Slotsize = 0.5 s. Star topology with 500m between transmitters and receiver.

CW MAC Simulation with Bellhop channel model

This uses the Bellhop simulation arrival file. FH-FSK modulation with a symbol length of 12.5 ms and 8 center frequencies is assumed. Bellhop is run with a frequency of 24 kHz (frequency difference between the 16 bins is ignored). A Star topology is used and the range between transmitters and the central receiver is 500m. The slot size is 0.5 s and the CW size is 10.

CW MAC with Bellhop channel model with 13 center freqs

Same channel settings as above. CW=10. Slotsize = 0.5 s. Star topology with 200m between transmitters and receiver

Pure Aloha Bellhop Sim with 13 center frequencies

Same channel settings as above, but longer clear time