New schemes of integer frequency offset estimation using pilots for DVB-T systems

Authors:
Youngyoon Lee;Youngpo Lee;Chonghan Song;Seokho Yoon
Affiliations:
Sungkyunkwan University, South Korea;Sungkyunkwan University, South Korea;Sungkyunkwan University, South Korea;Sungkyunkwan University, South Korea
Venue:
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Year:
2010

Citing 4
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Abstract

This paper proposes two novel schemes for pilot-aided integer frequency offset (IFO) estimation in orthogonal frequency division multiplexing (OFDM)-based digital video broadcasting-terrestrial (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 additional information of combinations that pilots can provide to improve the performance of the IFO estimation. The simulation results show that the proposed schemes are highly accurate in terms of the IFO detection probability.