Adaptive channel estimation for multichannel MLSE receivers

The performance of multichannel coherent maximum-likelihood sequence estimation (MLSE) reception in the presence of co-channel interference is limited by the channel estimation accuracy. An adaptive channel estimation approach is developed which improves the performance through interference cancellation. Significant performance gains (up to 8 dB) are demonstrated for the Digital Advanced Mobile Phone Service (D-AMPS) (IS-136) digital cellular system.

[1]  Lars Lindbom,et al.  Simplified Kalman estimation of fading mobile radio channels: high performance at LMS computational load , 1993, 1993 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[2]  Suhas Diggavi,et al.  Performance of multisensor adaptive MLSE in fading channels , 1997, 1997 IEEE 47th Vehicular Technology Conference. Technology in Motion.

[3]  Karl James Molnar,et al.  D-AMPS performance in PCS bands with array processing , 1996, Proceedings of Vehicular Technology Conference - VTC.

[4]  Gregory E. Bottomley,et al.  Adaptive arrays and MLSE equalization , 1995, 1995 IEEE 45th Vehicular Technology Conference. Countdown to the Wireless Twenty-First Century.

[5]  Lennart Ljung,et al.  Adaptation and tracking in system identification - A survey , 1990, Autom..

[6]  Bjorn Gudmundson,et al.  Adaptive MLSE performance on the D-AMPS 1900 channel , 1997 .

[7]  Petros G. Voulgaris,et al.  On optimal ℓ∞ to ℓ∞ filtering , 1995, Autom..

[8]  Lennart Ljung,et al.  Adaptation and Tracking in System Identification , 1988 .