| 动态信道下解相关和MMSE多用户检测算法 |
| |
| 引用本文： | 卢光跃,邵朝.动态信道下解相关和MMSE多用户检测算法[J].重庆邮电学院学报(自然科学版),2004,16(4):110-112. |
| |
| 作者姓名： | 卢光跃 邵朝 |
| |
| 作者单位： | 西安邮电学院通信工程系，西安邮电学院通信工程系 陕西西安710061，陕西西安710061 |
| |
| 摘 要： | 对用户归一化的互相关矩阵进行求逆运算是解相关算法和最小均方误差算法的基础。针对实际信道的动态性，即用户的随机接入或离开信道，研究矩阵求逆的更新算法以避免对相关矩阵的实时求逆运算。对更新算法的复杂度进行分析，结果表明，在动态信道中，更新算法可以有效地降低多用户检测算法的复杂度。
|
| 关 键 词： | 解相关算法 最小均方误差 多用户检测算法 更新算法 |
Decorrelating and MMSE MUD algorithm in dynamic channel |
| |
| LU Guang-yue,SHAO Chao.Decorrelating and MMSE MUD algorithm in dynamic channel[J].Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition),2004,16(4):110-112. |
| |
| Authors: | LU Guang-yue SHAO Chao |
| |
| Abstract: | Matrix inversion is the basis of Decorrelating and Minimum Mean Square Error(MMSE) multiuser detection (MUD) algorithm. Due to the fact that the actual communication channel is dynamic and the user may enter or leave the channel randomly, the large-dimension matrix inversion should be carried from time to time.In this paper, an updating algorithm is proposed for matrix inversion in decorrelating and MMSE algorithm with randomly-accessing users in DS/CDMA system. The proposed method,which employs the block matrix inversion, greatly decreases the computation complexity. |
| |
| Keywords: | decorrelating algorithm minimum mean square error(MMSE) multiuser detection algorithm(MUD) updating algorithm |
| 本文献已被 CNKI 维普 等数据库收录！ |
