| 协同OFDM系统联合中继选择、子载波配对和功率分配算法 |
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| 引用本文： | 蔡春晓,蔡跃明,杨文东.协同OFDM系统联合中继选择、子载波配对和功率分配算法[J].数据采集与处理,2011,26(3):275-279. |
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| 作者姓名： | 蔡春晓 蔡跃明 杨文东 |
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| 作者单位： | 1. 解放军理工大学通信工程学院,南京,210007
2. 解放军理工大学通信工程学院,南京,210007;东南大学移动通信国家重点实验室,南京,210096 |
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| 基金项目： | 国家自然科学基金(60972051,61001107)资助项目; 江苏省自然科学基金(BK2010101)资助项目; 东南大学移动通信国家重点实验室开放研究基金(2010D09)资助项目 |
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| 摘 要： | 研究了协同OFDM系统中的资源分配问题,提出了一种联合中继选择、子载波配对和功率分配的算法.首先在假定等功率分配的情况下,对中继节点进行选择并对子载波进行配对,然后在此基础上对选定的子载波对进行功率分配.分析结果显示所提算法是一种计算复杂度比较低,且系统容量接近最优容量的算法.
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| 关 键 词： | OFDM 中继选择 子载波配对 功率分配 |
Joint of Relay Selection,Subcarrier Pairing and Power Allocation for Cooperative OFDM Systems |
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| Cai Chunxiao,Cai Yueming,Yang Wendong.Joint of Relay Selection,Subcarrier Pairing and Power Allocation for Cooperative OFDM Systems[J].Journal of Data Acquisition & Processing,2011,26(3):275-279. |
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| Authors: | Cai Chunxiao Cai Yueming Yang Wendong |
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| Affiliation: | Cai Chunxiao1,Cai Yueming1,2,Yang Wendong1(1.Institute of Communications Engineering,PLA University of Science and Technology,Nanjing,210007,China,2.National Mobile Communications Research Laboratory,Southeast University,210096,China) |
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| Abstract: | The problem of resource allocation is studied in this paper and an algorithm of joint of relay selection,subcarrier pairing and power allocation is presented.Firstly,under equal power allocation,relay selection and subcarrier pairing are discassed.Secondly,the problem of power allocation is solved.Analysis results show that the proposed algorithm can greatly reduce the complexity only at the cost of little capacity loss. |
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| Keywords: | orthogonal frequency division multiplexing relay selection subcarrier pairing power allocation |
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