差分空时媒介调制系统的设计与仿真  

Research on Differential Space Time Media-based Modulation System

作　　者：邹泓樑 周越茹 金小萍[1] ZOU Hongliang;ZHOU Yueru;JIN Xiaoping(Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Provincial,China Jiliang University,Hangzhou 310018,China)

机构地区：[1]中国计量大学浙江省电磁波信息技术与计量重点实验室,浙江杭州310018

出　　处：《无线电通信技术》2021年第6期822-826,共5页Radio Communications Technology

基　　金：浙江省自然科学基金项目(LY17F010012);浙江省教育厅研究资助项目(Y201840047);国家级大学生创新创业训练计划资助项目(202010356049)。

摘　　要：差分空间调制(Differential Spatial Modulation,DSM)是一种多天线差分空间调制技术,具有低功耗低复杂度且无需信道估计的特点,适用于高速移动且对功耗和复杂度要求较高的物联网、6G等通信系统。由于DSM发射信号存在稀疏结构和需要满足差分编码等要求,限制了系统频谱效率的提升。因此,为了提高DSM系统的传输速率,将媒介调制(Media-Based Modulation,MBM)技术引入差分系统,提出了差分空时媒介调制(Differential Space Time Media-Based Modulation,DST-MBM)系统,在保留DSM固有优势的同时,通过射频镜(Radio Frequency Mirror,RFM)传递额外的信息比特,极大提高了传输效率。Differential Spatial Modulation(DSM)is a multi-antenna differential spatial modulation technology.It features low power consumption,low complexity and no channel estimation.It is suitable for communication systems such as the Internet of Things and 6G that move at a high speed and require relatively high power consumption and complexity.However,due to the sparse structure of the DSM transmission signal and the need to meet the requirement of differential coding,the improvement of the system spectrum efficiency is limited.Therefore,in order to improve the transmission rate of the DSM system,the article introduces the Media-based Modulation(MBM)technology into the differential system,and proposes a Differential Space Time Media-based Modulation(DST-MBM)system.While retaining the inherent advantages of DSM,the proposed system can transmit additional information through Radio frequency(RF)mirror index information,which greatly improves transmission efficiency.

关 键 词：多发多收 索引调制 差分空间调制 媒介索引调制 

分 类 号：TN914[电子电信—通信与信息系统]