Improved Strategies of LEACH-based Low Energy Consumption and High Reliable Multi-hop Routing Algorithm for Wireless Sensor Network

LEACH (Low Energy Adaptive Clustering Hierarchy) is one of the pioneer clustering routing algorithm, the idea of clustering proposed by which provides a good reference for the design of routing algorithm for wireless sensor network. In LEACH algorithm, the selection of cluster head ignores the consideration of node energy, which may lead to the death of cluster head and this will case the failure of data transmitted to sink. Besides, cluster head direct communication with the base station limits the expansion of the network scale. In response to these shortcomings, three strategies to improve the performance of LEACH-based algorithm are discussed in this paper, based on which we propose a low energy consumption high reliable multi-hop routing algorithm LEACH-MB. By improving the selection of cluster heads, introducing a mechanism of backup cluster head and adopting the approach of cluster head multi-hop, the performance of this new algorithm has been significantly improved compared to LEACH. Through the simulation analysis of the algorithm, we can find that this algorithm can prolong the network lifetime and improve the reliability of data transmission, and get a result of throughput increase.