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A Novel Pilot-Aided Integer Frequency Offset Estimation Scheme for OFDM-Based Systems  

Lee, Young-Yoon (성균관대학교 정보통신공학부)
Kim, Sang-Hun (성균관대학교 정보통신공학부)
Han, Tae-Hee (성균관대학교 정보통신공학부)
Yoo, Seung-Hwan (건국대학교 전자공학부)
Kim, Sun-Yong (건국대학교 전자공학부)
Yoon, Seok-Ho (성균관대학교 정보통신공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.6A, 2008 , pp. 592-598 More about this Journal
Abstract
In this paper, a novel pilot-aided integer frequency offset estimation scheme is proposed for orthogonal Sequency division multiplexing (OFDM)-based digital video broadcasting (DVB) systems. The conventional pilot-aided integer frequency offset estimation scheme proposed for OFDM-based DVB systems exploits the partial information of combinations provided by pilots. Thus, in this paper, we propose a novel integer frequency offset estimation scheme exploiting all information of pilot combinations. To compare the performance of the proposed scheme with that of the conventional scheme, we conduct a simulation in additive white Gaussian noise (AWGN) and multipath Rayleigh channels, which shows that the proposed scheme outperforms the conventional scheme in terms of the probability of integer frequency offset estimation failure.
Keywords
Orthogonal frequency division multiplexing (OFDM); Digital video broadcasting (DVB); Frequency offset; Synchronization;
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