• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Robust Pilot-aided Frequency Offset Estimation Scheme for OFDM-based Broadcasting System with Cyclic Delay Diversity

Vol. 7, No.12, December 29, 2013
10.3837/tiis.2013.12.006, Download Paper (Free):

Abstract

This paper proposes an improved carrier frequency offset (CFO) and sampling frequency offset (SFO) estimation scheme for orthogonal frequency division multiplexing (OFDM) based broadcasting system with cyclic delay diversity (CDD) antenna. By exploiting a periodic nature of channel transfer function, cyclic delay and pilot pattern with a maximum channel power are carefully chosen, which helps to enable a robust estimation of CFO and SFO against the frequency selectivity of the channel. As a performance measure, a closed-form expression for the achievable mean square error of the proposed scheme is derived and is verified through simulations using the parameters of the digital radio mondiale standard. The comparison results show that the proposed frequency estimator is shown to benefit from properly selected delay parameter and pilot pattern, with a performance better than the existing estimator.


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Cite this article

[IEEE Style]
Won-Jae Shin and Young-Hwan You, "Robust Pilot-aided Frequency Offset Estimation Scheme for OFDM-based Broadcasting System with Cyclic Delay Diversity," KSII Transactions on Internet and Information Systems, vol. 7, no. 12, pp. 3055-3070, 2013. DOI: 10.3837/tiis.2013.12.006

[ACM Style]
Shin, W. and You, Y. 2013. Robust Pilot-aided Frequency Offset Estimation Scheme for OFDM-based Broadcasting System with Cyclic Delay Diversity. KSII Transactions on Internet and Information Systems, 7, 12, (2013), 3055-3070. DOI: 10.3837/tiis.2013.12.006