节点均匀分布的无线传感器网络LEACH算法改进研究报告.docVIP

- . z 单位代码01 学 号 分类 号 TP312 密 级 毕业论文 节点均匀分布的无线传感器网络LEACH算法改良研究 院(系)名称 信息工程学院 专业名称 网络工程 2013年5月15日 - . z 节点均匀分布的无线传感器网络LEACH算法改良研究 摘 要 无线传感器网络在当前国际上备受关注，是多学科穿插的前沿研究热点领域。无线传感器网络综合了传感器技术、嵌入式计算技术、无线网络通信技术、分布式信息处理技术，能够协作的实时监测、感知与采集各种环境或监测对象等信息，通过嵌入式系统对信息的处理，以及自组织网络多跳中继方式将信息传送到终端用户。无线传感器网具有组网快捷、灵活等诸多优点，具有很高的研究价值与十分广阔的应用前景。 本文对无线传感器网络及路由协议进展了介绍，主要是针对 LEACH协议的缺点，分析了改良算法LEACH-G。原有的LEACH协议采用簇头节点随机选取的方式，改良后的LEACH-G协议根据簇头节点的选择，通过考虑节点的剩余能量和距离，来提高网络的负载和均衡性。并且簇头节点之间采用多跳的通信方式，保证了数据尽快的传到基站，弥补了LEACH算法单跳的缺乏，从而使网络寿命相应的延长。本协议改良的仿真在MATLAB仿真平台上实现，通过对仿真结果的分析与比拟，改良后的协议有效地延长了网络生命周期，提高了网络的效率。 关键词：无线传感器网络，路由协议，LEACH-G，LEACH Nodes uniformly distributed wireless sensor networks LEACH improved arithmetic research Author: Cai Wenling Tutor: Wu Haiyan Abstract Wireless Sensor Networks (WSN), crossed by many subjects, is the advanced research hotspot field of recent international attention. The Wireless Sensor Networks, which include the sensor technology, embedded technology, wireless network munication technology, distributed information process technology, is able to real-time monitor, apperceive and collect the information of environment or monitor object. The information is processed by embedded system and sent to terminal user via random autonomous wireless munication network with the multi-hop relay manager. It is being widely used in mercial and military fields. In this paper, the wireless sensor networks and routing protocols for the shortings of the LEACH protocol, analysis of the improved algorithm LEACH-G. The cluster head node randomly selected, the original LEACH protocol LEACH-G protocol improved according to the choice of the cluster head node, by taking into account the residual energy of the node and distance, to improve the network load and balance. And multi-hop munication between the cluster head node to ensure that the data transmitted to the base st