《无线传感器网络路由协议的研究LEACH与SEP协议》》-毕业论文.doc
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南京邮电大学
毕 业 设 计(论 文)
题 目
无线传感器网络路由协议研究
专 业
电子信息科学与技术
学生姓名
班级学号
指导教师
指导单位
通信与信息工程学院
日期: 年 月 日至 年 月 日
摘 要
无线传感器网络是计算机科学技术的一个新的研究领域,是传感器技术、嵌入式计算技术、分布式信息处理技术和无线通信技术相结合的产物。与传统网络相比,无线传感器网络具有造价低、功耗低、布局灵活性强、监测精度高等特点,因此在军事、医疗、家用等多个领域均有广阔的应用市场。
本文重点研究基于无线传感器网络的LEACH和SEP式路由协议,无线传感器网络节点数量庞大、单个节点资源有限,其路由协议设计的首要目标是提高能量有效性,延长网络寿命。本文总结了WSN的概念、结构、特点,分析了WSN的关键性技术问题及网络协议;研究了WSN的网络协议体系和路由协议的分类,分析比较了目前国内外学者提出的几种有代表性的路由协议及其性能优缺点;选择了LEACH路由协议为研究重点,分析了该路由算法的具体实现,针对传感器节点能量及网络生存周期等特点,介绍了其改进型SEP路由算法。并采用MATLAB网络仿真工具对该路由协议进行了整体仿真,并对其数据进行了分析。
在100*100的区域内随即产生100个节点,通过分析最后存活节点数,可以看出SEP路由协议与目前的聚类协议相比延长了稳定期。
关键词:无线传感器网络;LEACH路由协议;SEP路由协议;MATLAB仿真
Abstract
Wireless sensor networks are a new research field of computer science and technology. They are the integration of sensor techniques, nested computation techniques, distributed computation techniques and wireless communication techniques. Comparing with traditional networks, the wireless sensor networks features with low cost, low power loss, flexible layout and high monitor precision, therefore the sensor networks can be used for various application are as such as military, chemical, home.
This paper focuses on LEACH and SEP routing protocol based on wireless sensor networks, wireless sensor network node a huge number, the limited resources of a single node, the routing protocol design goal is to improve energy efficiency, and prolong the network lifetime.This paper summarizes the concept, structure, characteristics of the WSN, the WSN key technical problems and network protocols; study of WSN network protocol system and the classification of routing protocols, analyzes and compares several representative scholars at home and abroadrouting protocol and its performance advantages and disadvantages; the LEACH routing protocol analysis with a focus on the concrete realization of the routing algorithm for sensor node energy and network life cycle characteristics, its improved SEP routing algorithm. And MATLAB network sim
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