A Survey on Spectrum Utilization in Wireless Sensor Networks

Table 1

Classification of references.

WSN	Main target application	Habitat observation, military surveillance,	[3–5, 7]
		Road network monitoring, health care supervision	[8–11]
		House security sentry, wireless LAN performance monitoring	[6, 12]
	Auxiliary application	Sensor node localization, fault reading identification,	[13–16]
		Experimental repeatability improvement,	[17–20]
		On-demand synchronization	[22–25]
		Neighbor finding acceleration	[21, 26]
	Wireless network protocol	Efficient packet broadcasting, flooding and forwarding	[27–30]
	Wireless link property	Metric based evaluation methods	[31–34]
		Wireless link irregularity	[35–37]
		Wireless link asymmetry	[38–41]
		Wireless link correlation	[34, 42–44]
			[45, 46]
	Energy consumption	Adaptive transmission power control, duty cycle scheduling	[47–50]
		Sustainable sensor network, energy sharing concept	[51, 52]
CTI	Cross technology sensing	Energy packet sensing,	[53–56]
		RSS measurement	[57–60]
		CTI identification	[1, 61–63]
	Spectral interference Avoidance	Media access control	[64–67]
		White space leveraging	[68–71]
			[72, 72–74]
		Spectral band management	[75–78]
			[79]
	MIMO based techniques	Exploration on capacity of MIMO,	[80–83]
		Harmony coexistence environment implementation	[84, 85]