| 协同通信中的基于信道统计信息的联合中继选择的功率分配 |
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| 引用本文： | 王丽洁,习勇,唐艺,魏急波.协同通信中的基于信道统计信息的联合中继选择的功率分配[J].国防科技大学学报,2011,33(5):110-115. |
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| 作者姓名： | 王丽洁 习勇 唐艺 魏急波 |
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| 作者单位： | 国防科技大学电子科学与工程学院,湖南长沙,410073 |
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| 基金项目： | 国家自然科学基金资助项目(61002032,60903206); 教育部高等学校博士点专项科研基金资助项目(20094307110004) |
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| 摘 要： | 分析Rayleigh信道下分集/无分集的AF( Amplify and Forward)和DF( Decode and Forward)模式单中继传输的平均中断概率,给出解析表达式.在总功率约束下推导了4种模式下的统计最优功率分配的解析表达式来最小化系统的平均中断概率,并提出通过最佳中继选择进一步降低系统的平均中断概率...
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| 关 键 词： | 中断概率 放大前传 解码前传 功率分配 中继选择 |
| 收稿时间： | 2011/3/12 0:00:00 |
Statistically Optimal Power Allocation and Relay Selection in Cooperative Networks |
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| WANG Lijie,XI Yong,TANG Yi and WEI Jibo.Statistically Optimal Power Allocation and Relay Selection in Cooperative Networks[J].Journal of National University of Defense Technology,2011,33(5):110-115. |
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| Authors: | WANG Lijie XI Yong TANG Yi and WEI Jibo |
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| Institution: | WANG Li-jie,XI Yong,TANG Yi,WEI Ji-bo(College of Electronic Science and Engineering,National Univ.of Defense and Technology,Changsha 410073,China) |
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| Abstract: | The average outage probabilities of the amplify-and-forward(AF) relaying and the decode-and-forward(DF) relaying with/without diversity in Rayleigh fading were analyzed respectively,and the analytical expressions were presented.To minimize the average outage probability,with total transmit power constraint,the statistically optimal power allocation problem of the AF relaying and DF relaying were considered,and also the analytical expressions are provided.Then the statistical optimal relay selection was sugg... |
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| Keywords: | outage probability amplify-and-forward decode-and-forward power allocation relay selection |
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