Table 4: Simulation parameters.

Simulation parameter

The number of source nodesk
Channel throughput3 Mbytes/s

Packet Length

All control packets10 bytes
DATA2.5 kbytes

Traffic Classification

Multimedia streaming dataCPR 10 units/s
Still image and dataCPR 1 units/s

Interface Space and Contention Window Size

DIFS0.022 ms
SIFS0.016 ms
A contention window slots0.009 ms
A time slot2 ms

IEEE 802.15.4 MAC

Frame period20 ms
Contention access period6 ms
Contention free period14 ms
The number of guaranteed time slots7


Frame period20 ms
Random access period4 ms
Adaptive scheduled period16 ms
The number of adaptive scheduled slots8