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卫星网络中多因素均衡的分簇算法
引用本文:李冬妮,张大坤.卫星网络中多因素均衡的分簇算法[J].北京理工大学学报,2008,28(1):62-65.
作者姓名:李冬妮  张大坤
作者单位:1. 北京理工大学,计算机科学技术学院,北京,100081
2. 天津工业大学,计算机技术与自动化学院,天津,300160
摘    要:根据卫星运动的规律性,将卫星的运行周期离散化为若干时间片,采用每个时间片内网络拓扑固定不变的原理,对簇的稳定性、抗毁性和传输效率等因素进行均衡和优化;提出低地球轨道(LE0)卫星网络分簇算法,并将算法应用于Iridium模型中.仿真结果表明,应用该分簇算法后网络层的信令开销、可扩展性等指标明显优于平面网络结构下的性能.

关 键 词:自组网  卫星网络  分簇算法  多因素均衡  卫星网络  因素  均衡  分簇算法  Satellite  Networks  性能  网络结构  平面  指标  可扩展性  信令开销  网络层  仿真结果  模型  Iridium  应用  低地球轨道  优化  传输效率  抗毁性
文章编号:1001-0645(2008)01-0062-04
收稿时间:2007-09-14
修稿时间:2007年9月14日

Multi-Factor-Balanced Clustering Algorithm in Satellite Networks
LI Dong-ni and ZHANG Da-kun.Multi-Factor-Balanced Clustering Algorithm in Satellite Networks[J].Journal of Beijing Institute of Technology(Natural Science Edition),2008,28(1):62-65.
Authors:LI Dong-ni and ZHANG Da-kun
Institution:School of Computer Science and Technology; Beijing Institute of Technology; Beijing 100081;School of Computer Technology and Automation; Tianjin Polytechnic University; Tianjin 300160; China
Abstract:Based on satellites' movement,a number of time slices are divided,during which the network topology can be taken as fixed.On this basis,considering multi-factors like stability,survivability and transmission efficiency and optimizing between them,a clustering algorithm in low earth orbit(LEO) satellite networks are proposed.Applying the algorithm to the Iridium model,simulation results showed that the performances on signaling overhead and scalability were much better than the case of flat network structure.
Keywords:ad hoc network  satellite network  clustering algorithm  multi-factor balanced
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