基于Turbo算法的多发多收系统的性能研究  

Turbo-based algorithm MIMO system

作　　者：张奇[1] 漆兰芬[1] 

机构地区：[1]华中科技大学电子与信息工程系,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2005年第6期51-53,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

摘　　要：介绍了无线通信多输入多输出系统的基本特点,着重研究了采用迭代解码和逆映射的BLAST即Turbo-BLAST的算法,并在瑞利衰落信道中对其进行了仿真来分析它的性能.仿真结果表明在零次迭代下,采用Turbo-BLAST算法的双发双收系统的抗噪能力要比单发单收系统优越1.5dB左右.采用Turbo-BLAST算法的多发多收通信系统的性能随着迭代次数的增加而提高,其性能远远优于单发单收系统.The basic knowledge characteristics of multi-input multi-output (MIMO) wireless communication were introduced, emphasizing on BLAST algorithm, using iterative remapping and decoding viz. Turbo-BLAST. Its performance in ray Leigh-fading environments was simulated and analyzed . The results indicated that the noise immunity of 2-by-2 system used Turbo-BLAST is better than single-input-single-output system by about 1.5dB. The performance of system using the Turbo-BLAST algorithm was improved with increasing the iterations, being much better than single-input and single-output system.

关 键 词：多输入多输出 迭代解码 算法 

分 类 号：TN92[电子电信—通信与信息系统]