基于发射天线分组的广义空间调制系统研究与仿真  

Research and simulation of generalized spatial modulation system with transmit antenna grouping

作　　者：徐光明[1] 饶静 谢文兰 XU Guang-ming;RAO Jing;XIE Wen-lan(School of Data Science and Computer,Guangdong Peizheng College,Guangzhou 510830,China)

机构地区：[1]广东培正学院数据科学与计算机学院,广东广州510830

出　　处：《佛山科学技术学院学报（自然科学版）》2021年第4期66-71,共6页Journal of Foshan University(Natural Science Edition)

摘　　要：为了提高广义空间调制(Generalized Spatial Modulation,GSM)方案携带额外索引信息的能力,提出了一种基于发射天线分组的GSM(AG-GSM)方案。在AG-GSM方案中,首先,给定的发射天线数目被分为多个天线分组,且每个分组的天线数目与2成次幂关系;其次,设计一个状态选择器,用于调制一个PAM符号在正交或同相维度上,形成一个复发射符号。进一步,通过天线索引矢量,激活天线分组中一根天线,用于调制这个复发射符号,并进行发射;最后,在理想瑞丽信道条件下,与其他技术方案相比较,通过蒙特卡罗方法对AG-GSM方案进行了仿真分析。仿真结果表明,在相同频谱利用率情况下,本文提出的AG-GSM方案具有平均误码率低的特点,优于其他空间调制方案的误码率性能,进一步提高了无线通信的可靠性。In order to improve the ability of generalized spatial modulation(GSM)scheme to carry extra index information,a GSM scheme based on transmit antenna grouping(AG-GSM)is proposed.In AG-GSM scheme,firstly,the given number of transmitting antennas is divided into multiple antenna groups,and the number of antennas of each packet is related to the power of 2.Secondly,a state selector is designed to modulate a PAM symbol in orthogonal or in-phase dimension to form a complex emission symbol.Furthermore,through the antenna index vector,an antenna in the antenna group is activated to modulate the complex transmission symbol and transmit it.Finally,in the ideal Rayleigh channel condition,compared with other technical schemes,the AG-GSM scheme is simulated and analyzed by Monte Carlo method.The simulation results show that the AG-GSM scheme proposed in this paper has the characteristics of low average BER,which is better than other space modulation schemes,and further improves the reliability of wireless communication.

关 键 词：广义空间调制 天线分组 PAM符号 仿真 

分 类 号：TN820[电子电信—信息与通信工程] TN761