Complexity Iterative Receiver for Turbo-BLAST over Frequency Selective Fading Channels  

作　　者：杜娜 徐大专 

机构地区：[1]College of Information Science and Technology, Nanjing University of Aeronautics and Astronautics

出　　处：《Journal of Southwest Jiaotong University(English Edition)》2008年第3期222-226,共5页西南交通大学学报（英文版）

基　　金：The Natural Science Foundation of Jiangsu Province (BK2007192)

摘　　要：The computationally efficient iterative receiver is investigated for Turbo-BLAST （Bell Labs layered space time） system over frequency selective fading channels. Compared with the conventional receiver based on soft interference cancellation（SIC）, an iterative detection scheme based on bit-level cancellation is presented to reduce the complexity of the receiver by decomposing of an M-QAM constellation into a linear Combination of binary constellations. Simulation results demonstrate that compared with the conventional SIC scheme, the proposed scheme based on bit-level cancellation performs almost as well as the SIC scheme after several iterations while proving a lot of saving in computational complexity.The computationally efficient iterative receiver is investigated for Turbo-BLAST （Bell Labs layered space time） system over frequency selective fading channels. Compared with the conventional receiver based on soft interference cancellation（SIC）, an iterative detection scheme based on bit-level cancellation is presented to reduce the complexity of the receiver by decomposing of an M-QAM constellation into a linear Combination of binary constellations. Simulation results demonstrate that compared with the conventional SIC scheme, the proposed scheme based on bit-level cancellation performs almost as well as the SIC scheme after several iterations while proving a lot of saving in computational complexity.

关 键 词：Turbo-B LAST Iterative detection Soft interference Cancellation Bit-level cancellation 

分 类 号：TM311[电气工程—电机]