基于矩阵扩展方法的多速率线性离散码设计(英文)  

Design of multi-rate linear dispersion codes based on extended matrix method

作　　者：许莉[1] 朱近康[1] 邱玲[1] 

机构地区：[1]中国科学技术大学电子工程与信息科学系,合肥230027

出　　处：《中国科学院研究生院学报》2011年第3期342-348,共7页Journal of the Graduate School of the Chinese Academy of Sciences

基　　金：Supported by International Science and Technology Cooperation Program(2008DFA12160);National Science and Technology Significant Special project(2008ZX03003-004)

摘　　要：在采用空时码的无线通信系统中,收发2端较差的路径会降低系统的性能.提出了多速率线性离散码(LDC),并对其进行了分析,给出了一种基于矩阵扩展方法的设计算法.多速率LDC是传统LDC和LDC-TAS的BER性能的折中.进而提出了一种性能优于传统LDC-A-TAS算法的多速率LDC自适应发送天线选择(A-TAS)算法.The performance may be reduced by the path between transmission and reception in a bad state in wireless communication systems using space-time codes（STCs）.An STC called multi-rate linear dispersion codes（LDC）is proposed and analyzed,and its BER performance is a good trade-off between classical LDC and LDC-TAS.A design of multi-rate LDC based on extended matrix method is given.Further,an algorithm of adaptive transmit antenna selection（A-TAS）with multi-rate LDC is proposed,and it has better performance than classical LDC-A-TAS.

关 键 词：自适应发送天线选择 线性离散码 分集阶数 多速率线性离散码 

分 类 号：TN929[电子电信—通信与信息系统]