Computer Science ›› 2018, Vol. 45 ›› Issue (3): 115-123.doi: 10.11896/j.issn.1002-137X.2018.03.019

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Non-uniform Hierarchical Routing Protocol Based on New Clustering for Wireless Sensor Network

TAO Zhi-yong and WANG He-zhang   

  • Online:2018-03-15 Published:2018-11-13

Abstract: Aiming at the problem of energy hole caused by uneven load energy in clustering routing protocol,a non-uniform hierarchical routing protocol based on new clustering for load balancing(NHRPNC) was proposed.Firstly,the algorithm utilizes the improved threshold function of LEACH protocol to select the region-heads and make the reasonable non-uniform partitions of the network.Secondly,the region-heads use the new clustering algorithm to achieve the non-uniform clustering in each region.Then,the four-step selection mechanism of cluster heads is adopted to select the cluster head in each cluster periodically.At last,for inter-cluster multi-hop communication,the multi-hop path is optimized by dynamic weight.Simulation results reveal that compared with LEACH (Low Energy Adaptive Clustering Hierarchy) protocol,DEBUC (Distributed Energy Balanced Unequal Clustering routing) protocol and UCDP (Uneven Clustering based on Dynamic Partition) protocol,NHRPNC can promote the percentage point of 257.5,33.74 and 12.83 in the life cycle of the network respectively and has favorable performance in balancing the energy consumption.

Key words: Energy hole,Load balance,Non-uniform clustering,Four-step selection mechanism of cluster heads,Dynamicweight

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