@inproceedings{37d432d313d942b8b478fc441753ee74,
title = "ML blind channel estimation in OFDM using cyclostationarity and spectral factorization",
abstract = "Channel estimation is vital in OFDM systems for efficient data recovery. In this paper, we propose a blind algorithm for channel estimation that is based on the assumption that the transmitted data in an OFDM system is Gaussian (by central limit arguments). The channel estimate can then be obtained by maximizing the output likelihood function. Unfortunately, the likelihood function turns out to be multi-modal and thus finding the global maxima is challenging. We rely on spectral factorization and the cyclostationarity of the output to obtain the correct channel zeros. The Genetic algorithm is then used to fine tune the obtained solution.",
keywords = "Blind channel estimation, Genetic algorithm, Maximum likelihood estimation, Spectral factorization",
author = "Quadeer, {A. A.} and Al-Naffouri, {T. Y.}",
year = "2010",
doi = "10.1109/SPAWC.2010.5671265",
language = "English (US)",
isbn = "9781424469901",
series = "IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC",
booktitle = "2010 IEEE 11th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2010",
note = "2010 IEEE 11th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2010 ; Conference date: 20-06-2010 Through 23-06-2010",
}