On the accuracy of phase noise bandwidth estimation in OFDM systems

Title: On the accuracy of phase noise bandwidth estimation in OFDM systems
Creator: Carvajal, Rodrigo; Aguero, Juan C.; Godoy, Boris I.; Goodwin, Graham C.
Relation: 2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC). Proceedings of the 2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) (San Francisco, CA 26-29 June, 2011) p. 256-260
Publisher Link: http://dx.doi.org/10.1109/SPAWC.2011.5990407
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Resource Type: conference paper
Date: 2011
Description: Phase noise is of importance in OFDM systems, since it generates intercarrier interference and general system performance degradation. In this paper we analyse the accuracy of maximum likelihood estimation of the phase noise bandwidth for OFDM systems. We utilize the auxiliary functions used in the EM algorithm to obtain an expression for the Fisher information matrix. Our key conclusion is that it is difficult to obtain accurate estimates of the phase noise bandwidth for practical cases when the number of subcarriers is limited.
Subject: phase noise bandwidth; Orthogonal frequency division multiplexing (OFDM); wireless systems
Identifier: http://hdl.handle.net/1959.13/1066604
Identifier: uon:18120
Identifier: ISBN:9781424493326
Language: eng
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