| 时频重叠复用系统的低复杂度序列检测算法 |
| |
| 引用本文： | 莫勇,王竞,刘栋,李道本.时频重叠复用系统的低复杂度序列检测算法[J].北京航空航天大学学报,2009,35(1):5-8. |
| |
| 作者姓名： | 莫勇 王竞 刘栋 李道本 |
| |
| 作者单位： | 北京邮电大学 信息工程学院, 北京 100876 |
| |
| 基金项目： | 国家自然科学基金资助项目(90604035) |
| |
| 摘 要： | 利用时频重叠信号(Overlapped Hybrid-Division Multiplexing, OVHDM)实现高频谱效率数据传输,性能优于多电平调制方案.介绍了OVHDM信号模型以及最佳检测算法.为了降低检测的复杂度,提出了联合软干扰消除的序列检测算法--SIC-SE:软干扰消除后的各子载波数据流,在序列检测前首先通过基于快速矩阵逆的有限冲激响应滤波器.该算法的检测复杂度远低于最大似然检测算法,性能优于传统的软干扰消除算法.仿真表明,基于该检测算法的编码OVHDM系统性能优于使用相同信道编码的QAM-OFDM系统.
|
| 关 键 词： | 信号检测 重叠复用 最大似然 迭代方法 |
| 收稿时间： | 2008-01-15 |
Low complexity sequence detection algorithm for time-frequency overlapped multiplexing system |
| |
| Mo Yong,Wang Jing,Liu Dong,Li Daoben.Low complexity sequence detection algorithm for time-frequency overlapped multiplexing system[J].Journal of Beijing University of Aeronautics and Astronautics,2009,35(1):5-8. |
| |
| Authors: | Mo Yong Wang Jing Liu Dong Li Daoben |
| |
| Institution: | School of Information and Engineering, Beijing University of Posts and Telecommunications, Beijing, 100876, China |
| |
| Abstract: | Overlapped hybrid-division multiplexing(OVHDM) can achieve high spectrum efficiency,and the performance is superior to multi-level modulation.The system model and the optimum detection were studied.The joint soft interference cancellation and sequence estimation algorithm,SIC-SE,was proposed to reduce the detection complexity.The sub carrier data stream of OVHDM signals was first separated by soft interference cancellation,then filtered by finite impulse response(FIR) filter based on fast matrix inversion,a... |
| |
| Keywords: | signal detection overlapped multiplexing maximum likelihood iterative methods |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《北京航空航天大学学报》浏览原始摘要信息 |
| 点击此处可从《北京航空航天大学学报》下载免费的PDF全文 |
|
