A Cluster Head Routing Protocol for Improving Network Lifetime in Wireless Sensor Networks

Abstract

Abstract: The energy efficiency in wireless sensor networks
(WSNs) is a fundamental challenge. Cluster based routing is an
energy saving method in this type of networks to reduce energy
consumption in WSNs. A new Energy Efficient Cluster Head
Routing protocol for heterogeneous WSN, which is called
CHRP is proposed and evaluated which works on sleep-awake
policy that helps in prolonging lifetime of the network. In
CHRP, the cluster head is elected if its residual energy is more
than system average energy of the network. Node pairing
mechanism is also employed in CHRP. The nodes with high
initial and residual energy will have more chances to become
cluster head. Finally, the simulation results show that CHRP
enhances lifetime of heterogeneous sensor network as
compared to other protocols i.e., Distributed Energy Efficient
Clustering (DEEC) and Threshold Sensitive Stable Electron
Protocol (TSEP).

Index Terms: Clustering, Routing Protocol, Energy Efficient
Algorithms, Wireless Sensor Networks.