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Table 2 Experiment parameters for X-MAC protocol

From: Evaluation of a duty-cycled asynchronous X-MAC protocol for vehicular sensor networks

Parameter

Value

T

200 ms

t Data

50 ms

t sync

30 ms

t RTS

15 ms

t CTS

15 ms

t ACK

5 ms

Topology structure

Square (50 × 50 m 2), sensor node

 

distributed uniformly

Total number of sensor nodes

5, 12, 17 sensor nodes

Message payload

64 b

Node density

.002,.005,.007

Tx data rate

250 kbps

Transmission range

18−29 m

Propagation delay

1 μs

t x xp

0.0525 W

r x xp

0.0591 W

sp

0.0525 W