| Because of its have broad prospect, Wireless sensor network has become a hotresearch area of the world. Wireless sensor network is composed of multiple sensornodes and the base station, the base station can provide sufficient energy, and sensornodes are powered by batteries, carry limited energy, so the lifetime of wireless sensornetwork is a key factor restricting the development of the technology. Routing protocolcan make the wireless sensor network balance the energy consumption, which canmaximum extension of the life cycle of the network. So the study on routing protocolhas been the hot research in the field of wireless sensor.The routing protocol of wireless sensor network is divided into flat routing andhierarchical routing protocols. In practical application, the flat routing used seldom.Hierarchical routing protocol divide the whole network into several clusters, cluster hasa cluster head and some non cluster head node. This type of algorithm is widespread inpractical application.LEACH algorithm is a classic hierarchical routing algorithm. The algorithm cansignificantly prolong the network lifetime, but the algorithm selection stage ofshortcomings in the cluster head and using single hop transmission from cluster head tothe base station, so that it can only be used for small network.This paper presents the LEACH-PHQ algorithm based on the deep study ofLEACH algorithm and the improved algorithm, the algorithm is improved in theselection of cluster head, cluster formation, and the data transmission phase, bycalculating the optimal number of cluster head, cluster formed rapidly, and using datafusion. which can balance the node energy consumption and improve the network lifecycle.Finally,with simulation experiments using MATLAB software to establish thesimulation platform. The experimental results show that the improved algorithm caneffectively balance the network energy consumption of nodes, save energy, and prolongthe network lifetime effectively. |
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