移动通信中V-BLAST系统及其检测算法研究  

Research on V-BLAST System and Its Detection Algorithm In Mobile Communication

作　　者：张莉 Zhang Li(Nanjing University Jinling College,Nanjing Jiangsu 210089,China)

机构地区：[1]南京大学金陵学院

出　　处：《信息与电脑》2019年第23期178-180,共3页Information & Computer

摘　　要：提高移动通信系统的容量是提高移动通信系统性能的目标之一。空时编码技术可以在一定衰落环境下提供高质量的编码符号,从而提高系统容量,因而在无线通信中得到了广泛的关注。贝尔实验室提出的垂直分层空时码系统(V-BLAST)是移动通信的一项重要技术,因其传输速率和频谱利用率都较高,已经开始在实际系统中应用。基于此,笔者主要研究垂直分层空时码系统的模型构成和常用检测算法,并对各种检测算法的特点和性能进行分析,在此基础上对算法进行改进,将传统的定序干扰消除算法和极大似然相结合,对改进算法进行仿真。Improving the capacity of mobile communication system is one of the goals of improving the performance of mobile communication system.Space-time coding technology can provide high-quality coding symbols in a certain fading environment,so as to improve the system capacity,so it has been widely concerned in wireless communication.V-BLAST(vertical layered spacetime system)proposed by Bell Laboratories has been applied in practical system because of its high transmission rate and spectrum utilization,and is an important technology of mobile communication.Based on this,the author mainly studies the model construction and common detection algorithms of vertical layered space-time system,analyzes the characteristics and performance of various detection algorithms,improves the algorithm on this basis,combines the traditional sequential interference cancellation algorithm with the maximum likelihood algorithm,and simulates the improved algorithm.

关 键 词：V-BLAST 垂直分层空时码系统 MIMO 检测算法 定序串行干扰消除 

分 类 号：TN925[电子电信—通信与信息系统]