Power Adaptive Data Encryption for Energy-Efficient and Secure Communication in Solar-Powered Wireless Sensor Networks

Table 1

Summary of power consumption of commercial sensor network nodes.

	Crossbow MICAz [33]	Intel IMote2 [34]	Jennic JN5139 [35]
Radio standard	IEEE 802.15.4/ZigBee	IEEE 802.15.4	IEEE 802.15.4/ZigBee
Typical range	100 m (outdoors), 30 m (indoors)	30 m	1 km
Data rate (kbps)	250 kbps	250 kbps	250 kpbs
Sleep mode (deep sleep)	15 A	390 A	2.8 A (1.6 A)
Processor only	8 mA active mode	31~53 mA	2.7 + 0.325 mA/MHz
RX	19.7 mA	44 mA	34 mA
TX	17.4 mA (+0 dbm)	44 mA	34 mA (+3 dBm)
Supply voltage (minimum)	2.7 V	3.2 V	2.7 V
Average	2.8 mW	12 mW	3 mW

Consumption depends on clock speed selected between 13 and 104 MHz.