| 无线中继网络系统容量最大化中继选择机制 |
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| 引用本文： | 王坤,彭木根,梁栋,王文博,马文超.无线中继网络系统容量最大化中继选择机制[J].高技术通讯,2008,18(9). |
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| 作者姓名： | 王坤 彭木根 梁栋 王文博 马文超 |
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| 作者单位： | 1. 北京邮电大学电信工程学院,北京,100876
2. 联想研究院,北京,100085 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)，国家重点基础研究发展计划(973计划) |
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| 摘 要： | 分析了基于用户频谱效率的中继选择算法的不足,基于最大流最小割定理,给出了系统容量最优化问题模型,分析了两跳中继网络接入链路和中继链路对系统容量的不同影响.基于链路权重因子,提出一种基于系统容量最大化的中继选择算法.对不同中继选择算法下的系统容量差异的理论与仿真分析结果表明,提出的系统容量最大化中继选择算法可以获得更优的系统容量性能,并对网络拓扑和节点个数具有良好的鲁棒性.
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| 关 键 词： | 无线中继网络 中继选择算法 系统容量 链路质量 频谱效率 |
A relay selection scheme based on maximization of system capacity in wireless relay networks |
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| Wang Kun,Peng Mugen,Liang Dong,Wang Wenbo,Ma Wenchao.A relay selection scheme based on maximization of system capacity in wireless relay networks[J].High Technology Letters,2008,18(9). |
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| Authors: | Wang Kun Peng Mugen Liang Dong Wang Wenbo Ma Wenchao |
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| Affiliation: | Wang Kun Peng Mugen Liang Dong Wang Wenbo Ma Wenchao~* (School of Telecommunication Engineering,Beijing University of Posts , Telecommunications,Beijing 100876)(~*Lenovo Corporate Research & Development,Beijing 100085) |
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| Abstract: | The disadvantages of the relay selection algorithms based on user frequency efficiency are analyzed.Based on the max-flow min-cut theorem,an optimization model for maximizing system capacity is provided,and the influences of the access link and relay link of the two-hop relaying network on system capacity are analyzed.On the basis of these,a max- imum system capacity based relay selection scheme for wireless relay networks is proposed in terms of the link weight fac- tor.The detailed theoretical analysis an... |
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| Keywords: | wireless relay networks relay selection algorithm system capacity link quality frequency efficiency |
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