基于LEACH的无线传感器网络路由协议改进研究

发布时间：2018-04-09 15:16

本文选题：无线传感器网络　切入点：路由协议　出处：《华南理工大学》2014年硕士论文

【摘要】：随着低功耗无线通信技术、传感器技术、微机电技术以及嵌入式系统技术的迅速发展，无线传感器网络技术也取得了巨大发展。作为一种新兴的信息获取技术，无线传感器网络与塑料电子学、仿生人体器官并称为全球未来三大高科技产业，它在军事、环境、生物、医疗保健、空间探索、目标跟踪、入侵检测、气候监测、灾难救援和商业贸易等领域都有着极高的应用价值。路由协议是无线传感器网络中的一项关键技术，，由于网络拓扑结构的不同，传统网络路由协议无法适用于无线传感器网络，必须设计新的路由协议。在众多无线传感器网络路由协议中，典型的分簇路由协议LEACH是当前研究的重点。本文首先介绍了无线传感器网络的研究现状、应用前景、基本概念和特点。其次简单分析了几种典型的无线传感器网络路由协议，并着重介绍和分析了LEACH协议的工作机制和优缺点。最后，针对LEACH协议在选择簇首时不考虑节点剩余能量、不考虑节点到汇聚节点的距离、簇首节点数占总节点数量百分比的期望值不变这三个缺陷，本文提出了相应的改进方案，并使用MATLAB对改进后的LEACH协议进行了仿真实验，并与原始LEACH协议进行了对比。实验结果表明，改进后的LEACH协议在网络的能量有效性以及网络吞吐量性能上都有所提高，而且改进后的LEACH协议相比于原始LEACH协议更加适用于大规模无线传感器网络。
[Abstract]:With the rapid development of low-power wireless communication technology, sensor technology, micro-electromechanical technology and embedded system technology, wireless sensor network technology has made great progress.As a new information acquisition technology, wireless sensor networks (WSN), plastic electronics, biomimetic human organs are known as the three future high-tech industries in the world, including military, environment, biology, health care, space exploration, target tracking.Intrusion detection, climate monitoring, disaster relief and commercial trade and other fields have high application value.Routing protocol is a key technology in wireless sensor networks. Due to the difference of network topology, traditional network routing protocols can not be applied to wireless sensor networks, so it is necessary to design new routing protocols.Among many routing protocols in wireless sensor networks, the typical clustering routing protocol (LEACH) is the focus of current research.This paper first introduces the research status, application prospects, basic concepts and characteristics of wireless sensor networks.Secondly, several typical routing protocols in wireless sensor networks are briefly analyzed, and the working mechanism, advantages and disadvantages of the LEACH protocol are emphatically introduced and analyzed.The improved LEACH protocol is simulated by MATLAB and compared with the original LEACH protocol.The experimental results show that the improved LEACH protocol improves the network energy efficiency and network throughput performance, and the improved LEACH protocol is more suitable for large-scale wireless sensor networks than the original LEACH protocol.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN915.04;TP212.9

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