TDAL: Thoroughly Data Aggregation of Low Energy Devices in Secure Heterogeneous Wireless Sensor Networks

Table 3

IRIS and MICAz characteristics used for compiling the simulation.

Elements	Symbols	IRIS type	MICAz type
CPU (active mode)		96 nJ × bit^−1	96 nJ × bit^−1
RF transmit		156 nJ × bit^−1	209 nJ × bit^−1
RF receive/detect	/	192 nJ × bit^−1	236 nJ × bit^−1
Transmit data rate		250 kbps	250 kbps
Battery power	2 AA	21600 J	21600 J
Security key 128 bit		101376 nJ	126208 nJ