中圖分類號：TN92,；TP393 文獻(xiàn)標(biāo)志碼：A DOI: 10.16157/j.issn.0258-7998.223052 中文引用格式： 謝佳，張玲華. 基于能量均衡高效的LEACH改進(jìn)算法[J]. 電子技術(shù)應(yīng)用,，2023,，49(1)：63-68. 英文引用格式： Xie Jia，Zhang Linghua. Efficient LEACH algorithm based on energy equalization[J]. Application of Electronic Technique,，2023,，49(1)：63-68.
Efficient LEACH algorithm based on energy equalization
Xie Jia，Zhang Linghua
School of Communication and Information Engineering,，Nanjing University of Posts and Telecommunications,，Nanjing 210023，China
Abstract： LEACH routing protocol is a classical clustering routing method in wireless sensor networks. However, in severely limited wireless networks, high power consumption and short lifetime of nodes seriously affect network performance. In this paper, an improved efficient LEACH-X protocol based on energy balance is proposed. By joining the optimal number of cluster head, the surplus energy correction factor is put forward. Considering the residual energy of nodes,the number of cluster head during the period and density factor, and partitioning the deployment area,， the cluster head election threshold function is modified by adjusting the weight of the distance factor gain parameters for the region.Then, the second competition is in progress and ultimately the cluster head is selectd, so as to reduce the energy consumption of nodes, the survival time of WSN can be extended to some extent. Simulation results show that compared with the traditional LEACH protocol, the LEACH-X protocol reduces the network energy consumption and prolongs the network lifetime.
Key words : wireless sensor network,；LEACH；optimal cluster head,；residual energy factor,；density factor
LEACH(Low Energy Adaptive Clustering Hierarchy)[6]是最早被提出來的自適應(yīng)分簇路由協(xié)議,，但在嚴(yán)重限能的WSN中，對簇首的選擇較為隨機,，且沒有將節(jié)點密度,、節(jié)點負(fù)荷和節(jié)點剩余能量考慮進(jìn)簇首選舉過程中，整個網(wǎng)絡(luò)性能較低[7],，不利于WSN的生存,。
