分区大规模无线传感网络多跳LEACH协议  

SECTOR BASED MULTI-HOP LEACH PROTOCOL FOR LARGE SCALE WIRELESS SENSOR NETWORKS

作　　者：吕敬祥[1,2] 廖海红 

机构地区：[1]井冈山大学电子与信息工程学院,江西吉安343009 [2]流域生态与地理环境监测国家测绘地理信息局重点实验室,江西吉安343009

出　　处：《井冈山大学学报（自然科学版）》2017年第6期38-42,共5页Journal of Jinggangshan University (Natural Science)

基　　金：国家自然科学基金项目(11161024);江西省自然科学基金项目(20151BAB201006)

摘　　要：近年来通信技术的进步促进了低成本、低功耗、自组织无线传感网络的应用。节点有限的电池寿命是无线传感网中一个关键问题。从节点传输数据到基站是网络的主要能耗之一,因此许多路由协议被引入来延长网络寿命。本文提出一种基于分区的大规模无线传感网络多跳LEACH算法,该算法通过对感知区以基站为中心进行圆形分区,然后再利用定向天线将圆形区按不同角度进一步分区,有效的实现了离基站越近分区越小,从而簇成员个数越小。MATLAB工具仿真表明,与已有的LEACH协议和M-LEACH协议相比,基于分区的路由协议能够有效降低基站周围节点的能耗,从而延长整个网路的生存期。Recent technological advances in communication have resulted in the application of wireless sensor networks consisting of low cost, low power and self-organization. Limited battery life of sensor nodes is one of the critical issues in wireless sensor networks. Energy dissipation for data transferring from nodes to base station is one of the crucial causes of energy depletion. A lot of routing protocols were introduced to increase the lifespan of the networks. In this paper, a sector based multi-hop LEACH protocol for large scale wireless sensor networks is proposed. The algorithm divides the sensing area into circular with base in the core. Then the directional antenna is used to divide further the circular area according to different angles. In doing so, the partition nearby the base is smaller and the number of cluster members is smaller. Simulation results show that, compared with the existing LEACH protocol and M-LEACH protocol, the sector based protocol can effectively improve the life of the nodes around the base station, and thus prolong the lifetime of the whole network.

关 键 词：无线传感网络 分区 LEACH协议 分簇 

分 类 号：TN915.04[电子电信—通信与信息系统]