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An iterative soft decision directed linear timing estimator

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4 Author(s)
Herzet, C. ; Commun. & Remote Sensing Lab., Univ. catholique de Louvain, Louvain-la-Neuve, Belgium ; Ramon, V. ; Vandendorpe, L. ; Moeneclaey, M.

The paper addresses the issue of estimating the symbol timing in turbo receivers. We propose a linear timing estimator which benefits from the soft information delivered by the turbo system at each iteration to compute the timing estimate. This estimator is then compared to a synchronizer based on the expectation-maximization (EM) algorithm (Herzet, C. et al., ICASSP, 2003). Performance of the proposed synchronizer is illustrated by simulation results and proves better than that of the EM-based counterpart regarding both convergence speed and range.

Published in:

Signal Processing Advances in Wireless Communications, 2003. SPAWC 2003. 4th IEEE Workshop on

Date of Conference:

15-18 June 2003