| 空时分组码在编码协作通信中的性能研究 |
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| 引用本文： | 范立行,仰枫帆.空时分组码在编码协作通信中的性能研究[J].无线电通信技术,2013,39(1):36-38. |
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| 作者姓名： | 范立行 仰枫帆 |
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| 作者单位： | 南京航空航天大学电子信息工程学院,江苏南京,210016 |
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| 基金项目： | 航空电子系统综合技术重点实验室和航空科学基金联合资助项目(20105552031) |
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| 摘 要： | 为提高系统性能,有效抵抗衰落,提出了采用空时分组码的双中继编码协作通信系统,并给出了中继点使用Alamouti码的发送方式。根据源点和中继点产生LDPC码的整体校验矩阵,导出了目的点进行联合迭代译码所需的初始化消息。理论分析和数值模拟表明,在相同条件下,采用Alamouti码可以明显提高系统性能。当误比特率达到10-4,Alamouti码编码协作通信系统较相应的普通编码协作具有1.6 dB增益。
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| 关 键 词： | Alamouti空时分组码 编码协作通信 LDPC码 联合迭代译码 |
Space-time Block Coding for Multi-relay Coded Cooperative Communication and its Performance Results |
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| FAN Li-xing
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YANG Feng-fan.Space-time Block Coding for Multi-relay Coded Cooperative Communication and its Performance Results[J].Radio Communications Technology,2013,39(1):36-38. |
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| Authors: | FAN Li-xing YANG Feng-fan |
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| Affiliation: | (College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics, Nanjing Jiangsu 210016,China) |
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| Abstract: | Space-time block coding can be used into two-relay coded cooperative communication for improving performance and resist fading.The application of Alamouti codes is presented.According to overall parity-check matrix of LDPC codes in the source and relays,initiative information for joint iterative decoding in destination is derived.The analysis and simulations show the performance of the system with Alamouti codes is better than that of traditional coded cooperative system.When BER reaches 10-4,the new system achieves 1.6 dB gain over the traditional one. |
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| Keywords: | Alamouti space-time block code coded cooperative communication LDPC code joint iterative decoding |
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