Title :
Adaptive channel estimation for multichannel MLSE receivers
Author :
Bottomley, Gregory E. ; Molnar, Karl J.
Author_Institution :
Ericsson Inc., Research Triangle Park, NC, USA
fDate :
2/1/1999 12:00:00 AM
Abstract :
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.
Keywords :
adaptive Kalman filters; adaptive estimation; adaptive signal processing; cellular radio; cochannel interference; digital radio; fading channels; filtering theory; interference suppression; maximum likelihood sequence estimation; radio receivers; D-AMPS; Digital Advanced Mobile Phone Service; IS-136 digital cellular system; Kalman filtering; adaptive channel estimation; channel estimation accuracy; co-channel interference; fading; interference cancellation; maximum-likelihood sequence estimation; multichannel MLSE receivers; multichannel coherent MLSE reception; performance; Adaptive arrays; Antenna arrays; Channel estimation; Filtering; Gaussian noise; Interchannel interference; Kalman filters; Least squares approximation; Maximum likelihood estimation; Receiving antennas;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.749356
