Energy Efficiency of Ultra-Low-Power Bicycle Wireless Sensor Networks Based on a Combination of Power Reduction Techniques

Table 1

Comparison of power savings in previous works.

Reference	Wireless technology	Type of study	Metric	Power savings (%)
Cotuk et al. [19]	ZigBee	Experimental	TPC	20
Ramakrishnan and Krishna [21]	N/A	Simulation	TPC	40.62 (OL-FTPC) and 38.6 (CL-FTPC)
Castagnetti et al. [23]	N/A	Simulation	TPC combined with sleep/wake	26
Kim et al. [25]	ZigBee	Experimental	TPC	51.63
Ikram et al. [26]	ZigBee	Experimental	TPC combined with AMC	50
Correia et al. [27]	ZigBee	Experimental	TPC	57

Open-loop fuzzy logic transmission power control.
Closed-loop fuzzy logic transmission power control.
Adaptive multichannel.