Title :
A joint maximum likelihood approach to frame synchronization in presence of frequency offset
Author :
Koo, Younghoi ; Lee, Yong H.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
This paper proposes a new frame synchronizer that can achieve frame sync in presence of frequency offset. In particular, a maximum likelihood (ML) algorithm for joint frame synchronization, frequency and channel estimation is developed. Its derivation starts with the assumption of additive white Gaussian noise (AWGN) channels, but the results is extended to frequency selective channels. It is shown through computer simulation that the proposed scheme outperformed the existing schemes when frequency offset exists.
Keywords :
AWGN channels; dispersive channels; frequency estimation; maximum likelihood estimation; packet radio networks; synchronisation; AWGN channels; additive white Gaussian noise channels; channel estimation; computer simulation; dispersive channel; frame synchronization; frequency estimation; frequency offset; frequency selective channels; joint maximum likelihood approach; maximum likelihood algorithm; packet transmission; AWGN channels; Additive white noise; Bayesian methods; Channel estimation; Computer errors; Computer simulation; Frequency estimation; Frequency synchronization; Maximum likelihood estimation; Probability density function;
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Print_ISBN :
0-7803-7400-2
DOI :
10.1109/ICC.2002.997109
