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Table 1 rDCF parameters [6, 11].

From: Modeling Energy Consumption of Dual-Hop Relay Based MAC Protocols in Ad Hoc Networks

Physical characteristic

IEEE 802.11 b DSSS

32

5

6

DIFS

50 μ s

SIFS

10 μ s

EIFS

DIFS + SIFS + ACK

Slot

20 μ s

MAC header

272 bits

PHY header

192 μ s

RTS

160 bits/control rate + PHY header

CTS

112 bits/control rate + PHY header

ACK

112 bits/control rate + PHY header

RRTS1

256 bits/control rate + PHY header

RRTS2

260 bits/control rate + PHY header

RCTS

120 bits/control rate + PHY header

Data Rates

1, 2, 5.5, 11 Mbps

Control Rate

2 Mbps

Propagation Delay

1 μ s

Antenna height

1.5 meters

Transmit Power

15 dBm

Loss

0 dB

Shadowing deviation

10 dB

Data Rates and Modulations

BPSK @ 1 Mpbs, QPSK @ 2 Mbps, CCK5.5 @ 5.5 Mbps, CCK11 @ 11 Mbps

Receiver Sensitivity

−94 dBm, −91 dBm, −87 dBm, −82 dBm