Power-Management Techniques for Wireless Sensor Networks and Similar Low-Power Communication Devices Based on Nonrechargeable Batteries

Table 2

Overview of the proposed power management techniques.

Technique	Costs	Software	Intrinsic energy	Main	Usage
		complexity	inefficiencies	trade-off	indication
Power gating (PG)	Add + 10%	High	Very low	High data latency	Very low duty-cycle app
Voltage regulator avoidance	None	None	MCU w/high volt. can be energy-inefficient	MCU can be unstable	Primary cells + low duty-cycle app
Power matching (PM)	Add + 15%	High	May have + 30% energy losses	High data latency	Primary cells + low duty-cycle app