| 基于功率分配的空间耦合数据传输性能分析 |
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| 引用本文： | 刘正宣,康桂霞,张宁波,刘奎,司中威.基于功率分配的空间耦合数据传输性能分析[J].北京邮电大学学报,2017,40(1):46-52. |
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| 作者姓名： | 刘正宣 康桂霞 张宁波 刘奎 司中威 |
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| 作者单位： | 北京邮电大学 信息与通信工程学院,北京,100876;北京邮电大学 信息与通信工程学院,北京,100876;北京邮电大学 信息与通信工程学院,北京,100876;北京邮电大学 信息与通信工程学院,北京,100876;北京邮电大学 信息与通信工程学院,北京,100876 |
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| 基金项目： | 国家自然科学基金项目，国家高技术研究发展计划(863计划)项目，国家重大科技专项项目 |
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| 摘 要： | 通过研究功率分配对空间耦合数据传输的性能影响,在空间耦合数据流间干扰完全消除的情况下,利用密度进化与势能函数证明了等功率传输性能最优.为了以较少的性能损失为代价,减少等功率传输引起的高检测复杂度,提出了一种功率分配算法实现非等功率传输.外信息转换图分析和仿真结果证实了理论分析的正确性和所提算法的可行性.
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| 关 键 词： | 功率控制 空间耦合 置信传播 密度进化 势能函数 |
Performance Analysis on Spatially Coupling Data Transmission Based on Power Allocation |
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| LIU Zheng-xuan,KANG Gui-xia,ZHANG Ning-bo,LIU Kui,SI Zhong-wei.Performance Analysis on Spatially Coupling Data Transmission Based on Power Allocation[J].Journal of Beijing University of Posts and Telecommunications,2017,40(1):46-52. |
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| Authors: | LIU Zheng-xuan KANG Gui-xia ZHANG Ning-bo LIU Kui SI Zhong-wei |
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| Abstract: | In order to investigate the performance of power allocation for spatially coupling data transmission,under conditions in which the interference of among coupling data streams is eliminated completely,the author proved that the system performance can achieve optimal for equal power transmission by utilizing density evolution and potential function.To reduce higher detection complexity caused by equal power transmission at the price of a small performance loss,a new power allocation algorithm was proposed to implement unequal power transmission.Extrinsic information transfer chart analyses and simulation results verify the correctness of theory analysis and the feasibility of the proposed algorithm. |
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| Keywords: | power control spatially coupling belief propagation density evolution potential function |
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