吴炯1,
杨普1,
南海涵1,
张海林1
1.西安电子科技大学综合业务网理论及关键技术国家重点实验室 ??西安 ??710071
2.中国电子科技集团公司数据链技术重点实验室 ??西安 ??710068
基金项目:国家自然科学基金(61671341),数据链技术重点实验室开放基金(CLDL-20182412),国家111计划项目(B08038)
详细信息
作者简介:刘毅:男,1978年生,教授,研究方向为宽带无线通信技术、空时编码与协作通信技术、通信对抗
吴炯:男,1992年生,硕士生,研究方向为宽带无线通信技术、全双工通信技术
杨普:男,1995年生,硕士生,研究方向为宽带无线通信技术、全双工通信技术
南海涵:男,1996年生,硕士生,研究方向为宽带无线通信技术、全双工通信技术
张海林:男,1963年生,教授,研究方向为宽带无线通信技术
通讯作者:刘毅 yliu@xidian.edu.cn
中图分类号:TN92计量
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被引次数:0
出版历程
收稿日期:2018-05-11
修回日期:2018-10-10
网络出版日期:2018-11-02
刊出日期:2019-02-01
High Spectrum Efficiency Full-duplex Two-way Relay Scheme for OFDM
Yi LIU1, 2,,,Jiong WU1,
Pu YANG1,
Haihan NAN1,
Hailin ZHANG1
1. State Key Laboratory of Integrated Service Network, Xidian University, Xi’an 710071, China
2. Key Laboratory of Data Link, China Electronics Technology Group Corporation, Xi’an 710068, China
Funds:The National Natural Science Foundation of China (61671341), The Foundation of CETC Key Laboratory of Data Link Technology (CLDL-20182412), The National 111 Project (B08038)
摘要
摘要:针对同时同频全双工双向中继网络,该文提出一种对中继剩余自干扰信号具有鲁棒性的双向中继传输方案。该文首先对中继剩余自干扰信号进行分析,将无限迭代的剩余自干扰信号建模成等效多径信号,并利用OFDM的循环前缀对抗等效多径现象,以降低中继剩余自干扰信号对系统传输性能的影响。在等效多径方案的基础上,以系统信干噪比最大化为目标,推导出全双工双向中继传输的最佳放大因子求解方法。最后,通过仿真验证所提出的双向中继传输方案的有效性。
关键词:无线通信/
全双工/
中继传输/
等效多径/
放大转发
Abstract:For the full-duplex two-way relay network, a two-way relay transmission scheme that is robust to the relay residual self-interference signal is proposed. Firstly, the residual self-interference signal of the relay is analyzed, the infinite self-interfering signal is modeled as an equivalent multipath signal, and the cyclic prefix of OFDM is used to combat the equivalent multipath phenomenon to reduce the residual self-interference signal impact. Based on the equivalent multipath scheme, the paper aims at maximizing the SINR of the system, and deduces the optimal amplification factor solving method of the relay in bidirectional full-duplex relay transmission. Finally, the simulation verifies the correctness of the optimal amplification factor of relay, and the effectiveness of the proposed two-way relay transmission scheme is verified through simulation.
Key words:Wireless communication/
Full-duplex/
Relay transmission/
Equivalent multipath/
Amplify and forward
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