Title :
A fine carrier recovery algorithm robustto doppler shift for OFDM systems
Author :
Kang, Eun Su ; Hwang, Humor ; Han, Dong Seog
Author_Institution :
Grad. Sch. of Electr. Eng. & Comput. Sci., Kyungpook Nat. Univ., Daegu, South Korea
Abstract :
In this paper, a fine carrier recovery algorithm is proposed to maintain the synchronization even in a severe Doppler shift for orthogonal frequency division multiplexing (OFDM) systems such as digital video broadcasting for handheld (DVB-H), DVB for terrestrial (DVB-T) and DVB-T2. The proposed algorithm estimates the frequency offset by utilizing correlation values in the received OFDM symbols by adding intentional frequency offsets. Its performance is compared with conventional algorithms for the DVB-H system in fading with Doppler.
Keywords :
Doppler shift; OFDM modulation; digital video broadcasting; synchronisation; DVB-terrestrial; Doppler shift; OFDM systems; digital video broadcasting; fine carrier recovery; handheld DVB-H; intentional frequency offsets; orthogonal frequency division multiplexing; synchronization; Channel estimation; Digital video broadcasting; Doppler shift; Estimation; Frequency domain analysis; Frequency estimation; OFDM; OFDM, frequency synchronization, Doppler shift, DVB-H;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.2010.5606249
