| 自适应降低复杂度的预均衡最大似然序列检测 |
| |
| 引用本文： | 郑霖.自适应降低复杂度的预均衡最大似然序列检测[J].桂林电子科技大学学报,2011,31(4):266-269. |
| |
| 作者姓名： | 郑霖 |
| |
| 作者单位： | 桂林电子科技大学信息与通信学院,广西桂林,541004 |
| |
| 基金项目： | 国家自然科学基金(60962001); 广西自然科学基金重点项目(0991018Z) |
| |
| 摘 要： | 通过缩减最大似然序列检测算法中的状态空间,预均衡可以大幅降低检测算法的复杂度,为克服深衰落环境中预均衡性能较差导致的算法性能降低,引入预均衡模糊度的量度,自适应控制在不同衰落和信噪比条件下预均衡状态缩减的深度,从而获得稳定的似然均衡性能.
|
| 关 键 词： | 均衡 最大似然序列检测 维特比算法 |
Pre-equalization maximum-likelihood sequence detection with adaptive reducing complexity |
| |
| Zheng Lin.Pre-equalization maximum-likelihood sequence detection with adaptive reducing complexity[J].Journal of Guilin Institute of Electronic Technology,2011,31(4):266-269. |
| |
| Authors: | Zheng Lin |
| |
| Affiliation: | Zheng Lin(School of Information and Communication Engineering,Guilin University of Electronic Technology,Guilin 541004,China) |
| |
| Abstract: | By reducing the size of state space in maximum-likelihood sequence detection(MLSD),pre-equalization remarkably simplifies the implementation of MLSD.However,under deep fading channels,linear pre-equalization has a high bit-error rate,which deteriorates MLSD.Instead of using hard decision directly,an ambiguity function from the pre-equalization results to successive MLSD is introduced.Using the function to adaptively control states reduction,the proposed algorithm obtains stable BER performance as MLSD shoul... |
| |
| Keywords: | equalization maximum-likelihood sequence detection viterbi algorithm |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
