Table 2.

Drained current of different wireless sensor node for different activity modes.

Wireless Node Operation Mode	Panstamp NRG 2.0 [72,73]	Decawave DWM1000 [74]	9XTend [75]
Off	5 μA	-	5 μA
Idle	-	13.4 mA	147 μA
Sleep	1–2 μA	200–550 nA	1.6–10 mA
Transmission	36 mA (868 MHz)	111 mA (3.5 GHz)	-
Reception	18 mA (868 MHz)	154 mA (3.5 GHz)	-