Combined channel estimation and data detection using soft statistics for frequency-selective fast-fading digital links

被引:27
作者
Baccarelli, E [1 ]
Cusani, R [1 ]
机构
[1] Univ Rome La Sapienza, Dept Info Com, I-00184 Rome, Italy
关键词
digital communications; fading channels; equalizers; time-varying channels;
D O I
10.1109/26.664292
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A novel adaptive nonlinear equalizer for fast time-varying multipath channels that combines the channel-estimation and data-detection tasks is presented. The a posteriori probabilities (APP's) of the states of the intersymbol interference (ISI) channel are recursively computed from the received data by a symbol-by-symbol (SbS) detector [7] and are then employed by a Kalman-type nonlinear channel estimator. Robust channel tracking and good data-detection performance are obtained, with a reasonable receiver complexity.
引用
收藏
页码:424 / 427
页数:4
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