Energy-efficient clustering multi-hop routing algorithm for wireless sensor networks

Aiming at the problem of unbalanced energy consumption in the existing Wireless Sensor Networks(WSN) clustering routing algorithm,an energy-efficient clustering multi-hop routing(EECMHR) algorithm is proposed.The core of EECMHR contains two parts.Firstly,when cluster-heads are selected,an average residual energy factor is introduced,i.e.,the percentage of the cluster-head among other nodes is updated according to the ratio of each node's residual energy and average residual energy within the cluster at the end of last round.Secondly,MTE(minimum transmission energy) multi-hop routing algorithm should be obeyed when cluster-heads communicating with the base station,which can balance the overall energy consumption of WSN.Experimental results show that EECMHR can improve the WSN energy efficiency and prolong the lifetime to 20% against LEACH,to 10.5% against LEACH-C.