Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
OFDM symbol synchronization using frequency domain pilots in time domain
IEEE Transactions on Wireless Communications
IEEE Transactions on Consumer Electronics
Pilot-Aided Iterative Frequency Offset Estimation for Digital Video Broadcasting (DVB) Systems
IEEE Transactions on Consumer Electronics
IEEE Communications Magazine
IEEE Communications Magazine
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This paper deals with the integer frequency offset (IFO) estimation for orthogonal frequency division multiplexing (OFDM)-based digital video broadcasting-terrestrial (DVB-T) systems. In the conventional scheme, the decision variable is based on the limited number of the correlations and ratios of pilots of the received samples, and thus, the decision variable contains only a small portion of the signal energy, resulting in performance degradation. In this paper, we propose two novel IFO estimation schemes combining the correlations and ratios of pilots of the received samples efficiently. Numerical results demonstrate that the proposed schemes provide a better performance compared with that of the conventional scheme in terms of the correct estimation probability.