|
|||||
|
|
| 多点协作最优功率分配与协作伙伴选择方案 | |
| 引用本文： | 李军,何波,林霏,吴伟陵. 多点协作最优功率分配与协作伙伴选择方案[J]. 北京邮电大学学报, 2010, 33(6): 29-32. DOI: 10.3969/j.issn.1007-5321.2010.06.007 |
| 作者姓名： | 李军 何波 林霏 吴伟陵 |
| 作者单位： | 北京邮电大学,信息与通信工程学院,北京,100876;山东轻工业学院,济南,250353;山东大学,信息科学与工程学院,济南,250100;山东轻工业学院,济南,250353;北京邮电大学,信息与通信工程学院,北京,100876 |
| 基金项目： | 国家重点基础研究发展计划项目，国家自然科学基金项目 |
| 摘 要： | 为了优化多节点放大转发协作通信系统的性能，对系统误符号率(SER)进行了深入研究，提出一种在高、低信噪比(SNR)情况下均紧于理论值的SER下界. 在满足SER最小准则情况下，以下界为依据，提出适用于多节点协作通信系统最优功率分配与协作伙伴选择方案. 在系统总功率受限情况下，基于该方案的SER性能明显优于基于平均功率分配方案的性能. 与现有功率分配方案相比，在低SNR情况下，基于该方案的SER性能较紧于理论值. 同时，该方案实现了协作伙伴选择功能. |
| 关 键 词： | 协作通信 最优功率分配 协作伙伴选择 误符号率 下界 |
| 收稿时间： | 2010-01-08 |
Optimal Power Allocation and Cooperation Partner Selection for Multi-Node Amplify-and-Forward Cooperation Systems |
|
| LI Jun,HE Bo,LIN Fei,WU Wei-ling. Optimal Power Allocation and Cooperation Partner Selection for Multi-Node Amplify-and-Forward Cooperation Systems[J]. Journal of Beijing University of Posts and Telecommunications, 2010, 33(6): 29-32. DOI: 10.3969/j.issn.1007-5321.2010.06.007 | |
| Authors: | LI Jun HE Bo LIN Fei WU Wei-ling |
| Abstract: | The symbol error rate (SER) performance is analyzed for the optimization of amplify and forward multi node cooperative communication systems. Firstly, theory SER is analyzed for the systems. Then, the corresponding low bound (LB) is derived, that will be nearing the theory SER between both low and high signal to noise ratio conditions. Finally, algorithms used in optimal power allocation (OPA) and partnership selection for the systems by exploring the LB as cost function are formulated. Theoretical analysis and simulation results show that the OPA outperforms traditional equal power allocation in SER performance. Moreover, the LB will be more nearing the theory SER than existing algorithms especially under low SNR conditions. |
| Keywords: | cooperation communication optimal power allocation partnership selection symbol error rate low bound |
| 本文献已被 万方数据 等数据库收录！ | |
| 点击此处可从《北京邮电大学学报》浏览原始摘要信息 | |
| 点击此处可从《北京邮电大学学报》下载全文 | |