| 一种基于LET预测和转发组成员数的优化组播路由协议 |
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| 引用本文： | 邓霞,王建新.一种基于LET预测和转发组成员数的优化组播路由协议[J].电路与系统学报,2009,14(6). |
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| 作者姓名： | 邓霞 王建新 |
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| 作者单位： | 1. 中南大学,信息科学与工程学院,湖南,长沙,410083;广州大学,计算机科学与教育软件学院,广东,广州,510006
2. 中南大学,信息科学与工程学院,湖南,长沙,410083 |
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| 基金项目： | 高等学校博士学科点专项科研基金，湖南省杰出青年基金，国家自然科学基金，国家973前期研究专项，新世纪优秀人才支持计划 |
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| 摘 要： | 本文从综合考虑ODMRP协议转发组的有效性和健壮性出发,提出了一种基于LET(Link Expiration Time)预测和转发组成员数的组播路由协议LETFG-ODMRP(Optimal Multicast Protocol with LET and FGs based on ODMRP).LETFG-ODMRP通过对网络中传输路径保持连接时间LET的预测,得知路径的稳定度,然后结合考虑转发组成员数,建立一种新的路由选择标准PathMetric.采用此种路由选择标准,LETFG-ODMRP可调节权重在候选路由集中选择稳定或有效的传输路径构成转发组.模拟仿真结果证实LETFG-ODMRP提高了组播协议健壮性、有效性及自适应能力.
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| 关 键 词： | 移动自组网 组播 转发组 LET预测 转发组成员数 |
An optimal multicast protocol based on LET prediction and FGs in mobile Ad hoc networks |
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| DENG Xia,WANG Jian-xin.An optimal multicast protocol based on LET prediction and FGs in mobile Ad hoc networks[J].Journal of Circuits and Systems,2009,14(6). |
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| Authors: | DENG Xia WANG Jian-xin |
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| Affiliation: | DENG Xia1,2,WANG Jian-xin1 ( 1. School of Information Science , Engineering,Central South University,ChangSha 410083,China,2. School of Computer Science , Education Software,Guangzhou University,Guangzhou 510006,China) |
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| Abstract: | In order to enhance both the data efficiency and robustness of ODMRP protocol,an optimal multicast routing protocol called LETFG-ODMRP is proposed,which combines LET(Link Expiration Time) prediction with FGs(Forwarding Group number) based on ODMRP. LETFG-ODMRP acquires the path stability by the prediction of LET. Then it proposes a novel routing metric called PathMetric,which considers both the path stability and the number of FG nodes. During the setup of Forwarding Group,LETFG-ODMRP can choose stable or e... |
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| Keywords: | mobile Ad Hoc Network multicast Forwarding Group (FG) LET prediction the number of FG nodes |
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