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Type: Artigo de evento
Title: Optimum Frequency-mismatch Estimation For Burst-mode Coherent Receivers
Author: Betancourth C.E.C.
Lumertz F.
Arantes D.S.
Abstract: Closed-form solutions are presented for frequency mismatch estimation in burst-mode coherent receivers. The expressions also apply to periodic pilot-signal bursts inserted into a continuous bit stream. The solutions are optimal in the mean-square-error sense for coherent optical receivers subject to random-walk phase fluctuations and high short-term laser-frequency stability. Low computational time-complexity of only O(n) and space-complexity as low as O(log(n)) are obtained, where n is the size of the estimation block. Better yet, when the pilot-signal is a Continuous Wave tone, the estimator is able to extend its performance up to the maximum correctable frequency-mismatch, which is one-half of the baud rate. We believe that these results contribute to fostering low-power transceiver technology for green communication networks.
Editor: Institute of Electrical and Electronics Engineers Inc.
Rights: fechado
Identifier DOI: 10.1109/ITS.2014.6948028
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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