一种OvTDM系统的实现方案  

An Implementation Scheme of OvTDM System

作　　者：张铭[1] 王亚峰[1] 金婧 ZHANG Ming;WANG Yafeng;JIN Jing(Beijing University of Posts and Telecommunications,Beijing 100876,China;China Mobile Research Institute,Beijing 100032,China)

机构地区：[1]北京邮电大学,北京100876 [2]中国移动研究院,北京100032

出　　处：《通信技术》2021年第11期2496-2503,共8页Communications Technology

摘　　要：基于重叠时分复用技术(Overlapped Time Division Multiplexing,OvTDM)的多路传输结构,提出了一种新的OvTDM系统的实现方案。该方案将OvTDM等效为准多输入多输出(Multiple Input Multiple Output,MIMO)系统,在发射端对各发射子流施加特定的时间偏移,通过信道矩阵将多路信号叠加生成OvTDM信号,在接收端对信号进行匹配滤波器接收和过采样操作。借助MIMO的相关理论展开对OvTDM系统的研究,对OvTDM的系统容量、信号检测做了理论推导和仿真分析,仿真结果表明了该OvTDM系统方案的可行性。A new Overlapped Time Division Multiplexing(OvTDM)system implementation scheme is proposed based on the multiplex transmission structure of overlapping time division multiplexing technology,which is equivalent to a quasi-multiple input multiple output system.At the transmitter,the specific time offset is applied to each transmitted substream,and the multi-channel signals are superimposed through the channel matrix to generate OvTDM signals.At the receiver,the signal is received by a matched filter and oversampling operation.Research on this OvTDM system is carried out through the MIMO theory,and the system capacity and signal detection of OvTDM are theoretically deduced and simulated.Simulation results verified the feasibility of the OvTDM system scheme.

关 键 词：重叠复用 重叠时分复用 多输入多输出 检测算法 

分 类 号：TN911.3[电子电信—通信与信息系统]