A Joint Channel Estimation and Timing Adjustment for Adaptive MLSE

Hyoung Kyu SONG  We Duke CHO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E81-B   No.11   pp.2242-2244
Publication Date: 1998/11/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Mobile Communication
Keyword: 
channel estimation,  sliding window algorithm,  smoothing algorithm,  

Full Text: PDF(217.3KB)>>
Buy this Article




Summary: 
Because of non-negligible ISI due to the Gaussian filter and delay spread in the GSM system, an equalizer is required. In this letter, a joint sliding window channel estimation and timing adjustment method is proposed for maximum likelihood sequence equalizer. And also a smoothing algorithm is presented in order to improve the equalizer performance. This smoothing scheme utilizes a variant of LMS algorithm to tune the channel coefficient estimates. Simulation results show that the proposed scheme is adequate for channel estimation of the adaptive equalizer.