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A New Preamble Aided Fractional Frequency Offset Estimation in OFDM Systems

Authors:
Soumitra Bhowmick
Kasturi Vasudevan

Keywords: Carrier frequency offset (CFO); Frequency synchronization; OFDM; Preamble.

Abstract:
Carrier frequency offset (CFO) in OFDM systems can be divided in two parts, the fractional part (FFO) and the integer part (IFO). In this paper, a data aided fractional frequency offset (FFO) synchronization scheme for OFDM system is proposed. Four different algorithms to estimate the FFO are proposed. The proposed algorithms work in the time domain. An independent Rayleigh fading multipath channel in the presence of AWGN is considered. The performance is compared in terms of mean square error (MSE) of the frequency offset estimation and the computational complexity with the existing FFO estimation methods.

Pages: 86 to 90

Copyright: Copyright (c) IARIA, 2016

Publication date: November 13, 2016

Published in: conference

ISSN: 2308-4219

ISBN: 978-1-61208-514-2

Location: Barcelona, Spain

Dates: from November 13, 2016 to November 17, 2016