Nonuniform Grid-Based Coordinated Routing in Wireless Sensor Networks

Table 1

Comparison of network lifetime for uniform and non-uniform grid structures.

Node density	Lifetime for Uniform grid (time units)	Lifetime for Alternating non-uniform grid (time units)	Lifetime for Source non-uniform grid (time units)	Lifetime for Sink non-uniform grid (time units)
100 nodes	600	880	550	800
200 nodes	680	1250	780	1170
400 nodes	1800	1840	1660	1250
1000 nodes	3000	4500	4000	4300