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Robust Integer Frequency Offset Estimation Scheme Based on Differentially Combined Correlator Outputs for DVB-T Systems

Authors:
Jong In Park
Hyung-Weon Cho
Youngpo Lee
Sun Yong Kim
Gyu-In Jee
Jin-Mo Yang
Seokho Yoon

Keywords: DVB-T, estimation, IFO, OFDM, timing offset, emerging networks

Abstract:
A pilot-aided integer frequency offset (IFO) estimation scheme robust to the timing offset is proposed for orthogonal frequency division multiplexing (OFDM)-based digital video broadcasting-terrestrial (DVB-T) systems. The proposed scheme first produces correlation values between each continual pilot (CP) and a predetermined scattered pilot (SP), and then, recorrelates the correlation values in order to reduce the influence of the timing offset. Simulation results show that the proposed IFO estimation scheme is robust to the timing offset and has better estimation performance than the conventional scheme.

Pages: 29 to 33

Copyright: Copyright (c) IARIA, 2011

Publication date: November 20, 2011

Published in: conference

ISSN: 2326-9383

ISBN: 978-1-61208-174-8

Location: Lisbon, Portugal

Dates: from November 20, 2011 to November 25, 2011