| 一种改进的MIMO-OFDM系统信号检测算法 |
| |
| 引用本文： | 陈帅,张蕾.一种改进的MIMO-OFDM系统信号检测算法[J].计算机时代,2011(3):38-40. |
| |
| 作者姓名： | 陈帅 张蕾 |
| |
| 作者单位： | 安阳钢铁集团计量控制处,河南,安阳,455004 |
| |
| 摘 要： | 针对传统MIMO-OFDM系统中QR检测算法性能较差的问题,引入排序机制,在保持低复杂度的同时大幅提高了算法性能;结合CHASE框架,提出一种在频率选择性衰落信道下性能表现良好的改进型检测算法。仿真结果表明,排序QR算法相比传统算法性能有明显的提升,改进型CHASE算法的误码特性优于BLAST,且具有较低复杂度,在复杂度和性能间取得了较好的平衡。
|
| 关 键 词： | MIMO-OFDM QR分解 CHASE 复杂度 算法性能 |
A Mended Signal Detection Algorithm in MIMO-OFDM System |
| |
| CHEN Shuai,ZHANG Lei.A Mended Signal Detection Algorithm in MIMO-OFDM System[J].Computer Era,2011(3):38-40. |
| |
| Authors: | CHEN Shuai ZHANG Lei |
| |
| Affiliation: | (Measurement Control Department,Anyang Iron ＆ Steel Group Co.,Ltd,Anyang,Henan 455004,China) |
| |
| Abstract: | For the poor performance of traditional QR detection algorithm in MIMO-OFDM system,we introduce sorting mechanism which greatly improves the performance of the algorithm and keeps low complexity of it,then combining CHASE framework,present a mended detection algorithm which behaves well on frequency-selective fading channels.The simulation results demonstrate that the ordered QR algorithm has obvious promotion in performance than traditional QR,the BER performance of mended CHASE algorithm is superior to BLAST,and it has low complexity,gets good balance between performance and complexity. |
| |
| Keywords: | MIMO-OFDM CHASE |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
