Table 1: The simulation parameter settings.

ParameterValue

Size of an event data package 20 byte
Size of a query package 10 byte
Event data compression ratio 0.5
Maximum packet generating frequency ( )20 packets/100 s
Radio transmission range (R) 40 m
Energy cost of sending one byte data0.0144 mJ/byte
Energy cost of receiving one byte data0.00864 mJ/byte