| 自适应BP网络多用户检测在同步CDMA扩频通信系统中的应用 |
| |
| 引用本文： | 倪梁方,吴新余.自适应BP网络多用户检测在同步CDMA扩频通信系统中的应用[J].南京邮电大学学报(自然科学版),2000,20(2):35-40. |
| |
| 作者姓名： | 倪梁方 吴新余 |
| |
| 作者单位： | 南京邮电学院电子工程系,江苏南京,210003 |
| |
| 摘 要： | 研究了将自适应BP网络应用于直接序列码分多址扩频通信的多用户检测，先给出了在同步高斯信道下运用三层自适应BP网络解调扩频信号的结构框图，然后分析了基于这种网络进行多用户检测的理论依据和实际性能。仿真结果表明，无论是抗多址干扰还是抑制远近效应，自适应BP神经网络接收机都明显优于传统接收机和BP神经网络接收机，其性能非常接近最佳接收机。
|
| 关 键 词： | 码分多址联接 多用户检测 自适应BP网络 |
| 文章编号： | 1000-1972(2000)02-0035-06 |
| 修稿时间： | 1999-05-13 |
The Application of Adaptive BP Networks for Multiuser Detection in Synchronous DS-CDMA Communication |
| |
| NI Liang-fang,WU Xin-yu.The Application of Adaptive BP Networks for Multiuser Detection in Synchronous DS-CDMA Communication[J].Journal of Nanjing University of Posts and Telecommunications,2000,20(2):35-40. |
| |
| Authors: | NI Liang-fang WU Xin-yu |
| |
| Institution: | NI Liang-fang
,WU Xin-yu
;(Department of Electable Engineering, Nanjing University of Posts and Telecommunications,Nanjing 210003, China) |
| |
| Abstract: | Three layer adaptive Back-propagation networks are employed for demedulation in Synchronous DS-CDMA communications. A structure employing three layer adaptive Back-Propagation networks is put forward for demodulation of spread-specman signals in synchronous Gauss channel. The theoretical arguments and practical performance based on the networks are analyzed. The results show that ,whether the resistance to multiple access interference or the robust to near-far effects, the proposed receiver significantly outperforms not only the conventional receiver but also BP networks receiver and is comparable to the optimum receiver. |
| |
| Keywords: | Code division multiple access Multiuser detection Adaptive BP networks |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
