当前位置>主页 > 期刊在线 > 通信工程 >

通信工程2019年19期

基于补码的差分空间调制协作系统设计
任靖渊¹,许翎靖¹,金小萍²
(1. 中国计量大学 信息工程学院,浙江 杭州 310018; 2. 中国计量大学 信息工程学院 浙江省电磁波信息技术与计量检测重点实验室,浙江 杭州 310018)

摘  要:为了提出一种基于补码的差分空间调制协作系统(complement code-differential spatial modulation,CCDSM)设计方案,来克服差分空间调制(differential spatial modulation,DSM)技术应用在协作系统时产生的干扰,本文在DSM 系统的基础上,结合协作系统,将复杂的DSM 系统移入中继,并在系统中加入补码以增强抗干扰能力,最后对CC-DSM系统进行仿真并与其他系统比较性能差异。绘制CC-DSM 系统与Gold-DSM 系统在准静态平坦瑞利衰落信道下的误码率性能图。同时对比传统DSM 系统与CC-DSM 系统之间的误码率性能。研究得出,基于补码的差分空间协作调制系统在相同信噪比条件下,系统抗干扰能力要优于传统的差分空间调制系统和基于Gold 码的差分空间调制协作系统Gold-DSM。


关键词:差分空间调制;协作系统;补码



中图分类号:TN911         文献标识码:A         文章编号:2096-4706(2019)19-0061-04


Design of Differential Spatial Modulation Cooperative System Based on Complement Code

REN Jingyuan1,XU Lingjing1,JIN Xiaoping2

(1.College of Information Engineering,China Jiliang University,Hangzhou 310018,China;2.Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province,College of Information Engineering,China Jiliang University,Hangzhou 310018,China)

Abstract:To propose a complement code-differential spatial modulation (CC-DSM) design scheme to compensate for the interference generated by differential spatial modulation (DSM) technology when applying collaborative systems. Based on the DSM system,combined with the cooperative system,the complex DSM system is moved into the relay,and the complement code is added to the system to enhance the anti-interference ability. Finally,the CC-DSM system is simulated and compared with other systems. The BER performance charts of CC-DSM system and Gold-DSM system in quasi-static flat rayleigh fading channel are plotted. At the same time,the BER performance between the traditional DSM system and the CC-DSM system is compared. It is concluded that the anti-jamming capability of DSM system based on complement code is better than that of traditional DSM system and Gold-DSM system based on Gold code under the same SNR.

Keywords:differential spatial modulation;collaboration system;complement code


基金项目:浙江省自然科学基金项目:差分空间调制稀疏酉色散信号构造与分列差分检测算法研究(项目编号:LY17F010012);浙江省教育厅科研资助项目:面向空间调制系统的检测算法研究(项目编号:Y201840047);国家级大学生创新创业训练计划项目:差分空间调制系统发发送信号矩阵的构造研究(项目编号:201810356030);浙江省大学生科技创新活动计划暨新苗人才计划项目:基于补码的分布式差分空域索引调制的抗干扰技术(项目编号:2018R409008)。


参考文献:

[1] LAXMINARAYANAN G,JAYANTHI S. MIMO Schemes With Spatial Modulation in Wireless Communication [J].International Journal of Computer Trends & Technology,2014,7(4):183-187.

[2] LIU C,MA M,YANG Y,et al.Optimal spatial-domain design for spatial modulation capacity maximization [J].IEEE Communications Letters,2016,20(6):1092-1095.

[3] XIAO L,HE X,XIAO Y,et al.Low-Complexity Non-Coherent Detection for Spatial Modulation OFDM Systems [C]//IEEEInternational Conference on Communication Technology,2012:469-473.


作者简介:

任靖渊(1998.08-),男,汉族,浙江台州人,本科在读,主要研究方向:差分空间调制;

许翎靖(1998.07-),女,汉族,安徽淮北人,本科在读,主要研究方向:空间调制;

通讯作者:

金小萍(1978.11-),女,汉族,浙江衢州人,副教授,博士,主要研究方向:无线通信物理层关键技术。