无线传感器网络中结合丢包率和RSSI的自适应区域定位算法  

Adaptive area location algorithm combining with packet lost rate and RSSI in wireless sensor networks

作　　者：李方敏[1] 韩屏[1] 罗婷[2] 

机构地区：[1]武汉理工大学信息工程学院,湖北武汉430070 [2]烽火通信科技股份有限公司,湖北武汉430073

出　　处：《通信学报》2009年第9期15-23,共9页Journal on Communications

基　　金：国家自然科学基金资助项目(60773212);教育部重点项目(107130);湖北省重点国际科技合作资助项目(2007CA009)~~

摘　　要：首先分析无线传感器网络(WSN)中基于RSSI(接收信号强度指示)的现有定位算法存在的不足,然后在不同时间和空间的大量实验数据基础上,结合丢包率和RSSI提出了针对实际环境的距离评估模型和建立在此模型基础上的无线传感器网络定位算法,以此作为对无线定位研究的一种新的探索。通过实验对算法性能进行评估,证明使用该算法的WSN能够正常定位并具有较高的定位精度和稳定性。First, the shortcoming of existing location algorithm based on RSSI（received signal strength indication） in WSN（wireless sensor network） was analyzed. Then, supported by plenty of experimental data in different time and space, the distance evaluation model combining with packet lost rate and RSSI which aim at real environment and location algo- rithm based on this model was provided. It was regarded as a new kind of exploration for research of wireless location. Location experiments were used to evaluate the capability of this algorithm, which proves that WSN nodes running this algorithm can normally work and precision and stability are upper.

关 键 词：无线传感器网络 距离评估模型 RSSI 丢包率 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]