Table 2.

Parameters of the friendship mechanism simulation experiment.

Parameter	Value
Number of nodes	$n\in [100,300],n\in Z^{+}$
Number of friend nodes near LPNs	Randomly selected from the range of 1 to 10
Number of friendship relationships per friend node	Randomly selected from the range of 0 to 4
Physical layer rate	1 Mbps
Node RF range [25]	15 m
Wake-up time	1000 ms
Reception delay	10 ms
Packet length	47 Byte