基于VBLAST-OFDM的平行循环迭代QR分解检测算法  

Parallel Iterative Cycle QR Factorization Detection Algorithm based on VBLAST-OFDM

作　　者：李永杰[1] 傅洪亮[1] 

机构地区：[1]河南工业大学信息科学与工程学院,河南郑州450001

出　　处：《通信技术》2009年第4期7-9,共3页Communications Technology

基　　金：河南省教育厅自然科学研究计划项目(2008A510003);河南省教育厅自然科学基金(2007510004);河南工业大学科研基金(07XZZ009)

摘　　要：论文提出了一种基于VBLAST-OFDM系统的平行循环迭代QR分解检测算法,称为P-IQRD算法。该算法主要克服循环迭代QR分解算法最先检测层性能差的缺点,将平行算法的思想引入到循环迭代QR分解算法中,进一步抑制了误码传播现象,有效提高了系统的检测性能。仿真结果表明,文中提出的P-IQRD算法比循环迭代QR分解算法、传统的平行算法、QR算法和迫零算法在误码性能上要好。A novel parallel iterative cyclic QR decomposition detection algorithm based on VBLAST-OFDM system is proposed in this paper. In order to overcome the disadvantage of the poor performance for the first detected layer in IQRD algorithm, the parallel detection is applied to the IQRD algorithm, thus the error propagation is further suppressed and the performance is effectively improved. Simulation results show that the proposed P-IQRD algorithm is superior to the IQRD algorithm, the conventional parallel algorithm, the ZF algorithm and the OR decomposition algorithm.

关 键 词：VBLAST MIMO系统 QR算法 P-IQRD算法 

分 类 号：TN911.23[电子电信—通信与信息系统]