Design and Improvement of Routing Protocol for Field Observation Instrument Networking Based on LEACH Protocol

Table 3

Statistics of the average residual energy (J) of nodes of the four protocols without power supply.

Protocol	50 rounds	200 rounds	600 rounds	2000 rounds
LEACH	0.075	0.007	0	0
SEP	0.094	0.02	0	0
PECRP	0.088	0.053	0	0
FOI-LEACH	0.113	0.092	0.043	1.52 × 10^−5