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Novel Schemes of Pilot-Aided Integer Frequency Offset Estimation for OFDM-Based DVB-T Systems

By Youngyoon Lee, Dahae Chong, Myungsoo Lee, Seongho Chae and Seokho Yoon

Abstract

Abstract—This paper proposes two novel schemes for pilot-aided integer frequency offset (IFO) estimation in orthogonal frequency division multiplexing (OFDM)-based digital video broadcastingterrestrial (DVB-T) systems. The conventional scheme proposed for estimating the IFO uses only partial information of combinations that pilots can provide, which stems from a rigorous assumption that the channel responses of pilots used for estimating the IFO change very rapidly. Thus, in this paper, we propose the novel IFO estimation schemes exploiting all information of combinations that pilots can provide to improve the performance of IFO estimation. The simulation results show that the proposed schemes are highly accurate in terms of the IFO detection probability. Keywords—OFDM, DVB-T, pilot, IFO, estimation I

Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.353.293
Provided by: CiteSeerX
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