Error correction code aided channel estimation: A study on code-aided phase estimation and ambiguity resolution

 
9783659266188: Error correction code aided channel estimation: A study on code-aided phase estimation and ambiguity resolution

This monograph sheds some light on error correction code aided channel estimation, by focusing on code-aided phase estimation and ambiguity resolution (PEAR) algorithms. In particular, these algorithms exploit both pilot and coded-data symbols collected at a receiver for PEAR. Specifically, extensions are made to previous works, by studying the impact of pilot insertion on the Cramér-Rao bound (CRB) and the performance of PEAR algorithms, provided that the spectrum efficiency and the total energy consumption per bit to noise ratio keep invariant. The CRB for phase estimation is first derived. The general expectation-maximization (EM) method is then particularized for deriving an EM-based phase estimator. The convergence behavior of this estimator is investigated as well. After that, the PEAR algorithms reported in the literature are introduced, and an alternative method with a reduced complexity is proposed. Finally, a whole receiver is represented by one factor graph, and a phase estimation method is derived based on the sum-product algorithm (SPA). Extensive simulations are made to evaluate the CRB and the performance of the proposed algorithms.

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About the Author:

Tao Wang was born in May 1980. He received Bachelor and Ph.D degrees in electronic engineering from Zhejiang University, China, in Jun. 2001 and Jun. 2006, respectively. He also received a second Ph.D degree from Université Catholique de Louvain, Belgium in Feb. 2012. His research interests lie in wireless communications and signal processing.

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Tao Wang
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Tao Wang
Published by Lap Lambert Academic Publishing (2012)
ISBN 10: 3659266183 ISBN 13: 9783659266188
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