高时频效率通用滤波器组频分复用调制技术  

High Time-Frequency Efficiency Generalized Filter Banks Frequency Division Multiplexing Modulation

作　　者：辛雨[1,2] 许优 张怀瑾 暴桐 孔德进 XIN Yu;XU You;ZHANG Huaijin;BAO Tong;KONG Dejin(Zhongxing Telecom Equipment Corporation,Shenzhen 518000,China;State Key Laboratory of Mobile Network and Mobile Multimedia Technology,Shenzhen 518000,China;Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074,China;School of Electronic Information and Communication,Huazhong University of Science and Technology,Wuhan 430074,China;School of Electronics and Electrical Engineering,Wuhan Textile University,Wuhan 430200,China)

机构地区：[1]中兴通讯股份有限公司,深圳518000 [2]移动网络和移动多媒体技术国家重点实验室,深圳518000 [3]华中科技大学武汉国家光电研究中心,武汉430074 [4]华中科技大学电子信息与通信学院,武汉430074 [5]武汉纺织大学电子与电气工程学院,武汉430200

出　　处：《北京邮电大学学报》2023年第4期109-115,共7页Journal of Beijing University of Posts and Telecommunications

摘　　要：针对未来无线通信系统面临的频谱资源紧张问题,为提高通信系统频谱效率和时频资源利用率,提出了基于通用滤波器组频分复用的高时频效率调制技术。该技术通过灵活配置符号间隔与波形函数,无需循环前缀就能对抗符号间干扰和载波间干扰。针对不同的符号间隔设计了3种时隙传输结构,并分析了3种情况下引入的干扰问题。针对自干扰问题,进一步提出了基于帧的块迭代检测算法,通过不断补偿畸变信号极大地减小了干扰。仿真实验结果表明,所提方法在保障误码率性能的同时,提升了频谱效率和时频效率,且异步性能优越。In order to improve the spectrum efficiency and time-frequency resource utilization of the future wireless communication system,a high time-frequency efficiency modulation technique based on a general filter bank frequency division multiplexing is proposed to solve the shortage of spectrum resources.The proposed technique can combat inter symbol interference and inter carrier interference without the need for circular prefixes by selecting different symbol intervals and different waveform functions.Three typical time slot transmission structures are designed for different symbol spacing,and interference problems introduced in the three cases are analyzed.Furthermore,the iterative frame-based block iterative detection algorithm is further proposed,by continuously compensating for distorted signals,the interference introduced is signficantly reduced.The simulation results show that the technique improves the time-frequency and spectrum efficiency while ensuring the bit error rate performance and has a superior asynchronous performance.

关 键 词：无线通信 时频效率 滤波器组滤波 信号检测 

分 类 号：TN911.3[电子电信—通信与信息系统]