An Enhanced Distributed Scheme for WSNs

Table 1

Wireless communication protocols.

Standards	IEEE 802.15.4; Low power wireless personal area network (LP-WPAN)				IEEE 802.51.1; (WPAN)	IEEE 802.11; (WLAN)	IEEE 802.16; (WWAN)
	ZigBee	6LoWPAN	WirelessHART	ISA 100.11a	Bluetooth	WiFI	WiMAX
Range in meters	100	50			100	100	15 Km
Data rate	250–500 Kpbs	250 Kbps	250 Kbps	250 Kbps	1–3 Kbps	250 Kbps	250 Kbps
Frequencies	2.4 GHz	2.4 GHz	2.4 GHz	2.4 GHz	2.4 GHz	2.4, 3.7 and 5 GHz	2.3, 2.5 and 3.5 GHz
Network topology	Star, mesh, cluster tree	Star, mesh, cluster tree IPv6	Star, mesh, cluster tree	Star, mesh, cluster tree	Star	Star, tree, P2P	Star, tree, P2P
Applications	WSNs (monitoring and control)	WSNs, Internet, automation and entertainment	Wirelessly process monitoring and control application	Wireless systems of automation	WSNs (monitoring and control)	PC-based data acquisition; mobile Internet	Mobile Internet