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| 基于可变遗忘因子RLS的盲多用户检测 | |
| 引用本文： | 胡莉,张力伟,周希元. 基于可变遗忘因子RLS的盲多用户检测[J]. 网络安全技术与应用, 2012, 0(9): 14-17 |
| 作者姓名： | 胡莉 张力伟 周希元 |
| 作者单位： | 1. 西安电子科技大学通信工程学院,陕西,710071 2. 中国移动通信集团河北有限公司,河北,050001 3. 西安电子科技大学通信工程学院,陕西710071 中国电子科技集团第五十四研究所,河北050081 |
| 摘 要： | 对于直扩码分多址系统,本文提出了一种新的基于可变遗忘因子RLS的自适应盲多用户检测器,它能够自适应地估计检测向量,既具有对时变信道的快速跟踪能力,又具有较小的估计误差。最后通过仿真验证了该方法的有效性,与固定遗忘因子RLS盲多用户检测器相比,新算法具有更高的输出信干比,并且动态环境下的跟踪能力明显提高。另外还研究了参数对性能的影响,为参数的选择作出参考。 |
| 关 键 词： | 码分多址 盲多用户检测 可变遗忘因子 RLS |
Blind Multiuser Detector Based on Variable Forgetting Factor RLS |
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| Hu Li,Zhang Liwei,Zhou Xiyuan. Blind Multiuser Detector Based on Variable Forgetting Factor RLS[J]. Net Security Technologies and Application, 2012, 0(9): 14-17 | |
| Authors: | Hu Li Zhang Liwei Zhou Xiyuan |
| Affiliation: | 1 Institute of Telecommunications Engineering.Xidian University,Shanxi,710071 ,China 2 China Mobile Group Hebei Co..Ltd,Hebei,050001,China 3 The 54th Research Institute of CETC,Hebei,050081,China) |
| Abstract: | A new adaptive blind multiuser detector based on variable forgetting factor recursive least-squares（RLS） in direct sequence code-division multiple-access （DS-CDMA） system is proposed.It can estimate the detector vector adaptively,with fast tracking capability to the time-varying channel and low estimation error. Finally, simulations demonstrate the effectiveness of the proposed detector. Compared with the fixed forgetting factor RLS blind multiuser detector, the new algorithm has a higher output signal-to-interference-plus-noise ratio（SINR）,and the tracking capability is improved.In addition, effect of parameters on SINR performance is studied, providing a reference for the selection of the parameters. |
| Keywords: | code-division multiple-access blind multiuser detection variable forgetting factor recursive least-squares |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |