Table 1 MAC parameters of IEEE 802.11b and IEEE 802.15.4 network
From: Throughput analysis for coexisting IEEE 802.15.4 and 802.11 networks under unsaturated traffic
Parameter | 802.11b | 802.15.4 |
|---|---|---|
Data rate | 11 Mbps | 250 Kpbs |
Slot time | δ= 20 μs | t bo= 320 μs |
SIFS | 30 μs | 192 μs |
DIFS | 50 μs | N/A |
CCA | N/A | 128 μs |
MAC header | 24 B | 7 B |
PHY header | 16 B | 1 B |
Payload size | 1024 B | 120 B |
ACK | 14 B | 11 B |
ACK timeout | 300 μs | 1120 μs |
CWmin | 32 | N/A |