Title :
A OFDM signal waveform based delay lock loop algorithm
Author :
Bian Dongming ; Xinying, Yi ; Ran Chongasen
Author_Institution :
PLA Univ. of Inf. & Eng., Zhengzhou, China
fDate :
29 June-1 July 2002
Abstract :
A delay lock loop algorithm is proposed, in which the correlation sequence is obtained from the received signal by analyzing the OFDM signal. The algorithm is a waveform-based timing tracking one, in which the OFDM signal is thought of as a whole. At the same time the algorithm has nothing to do with modulated information and the carrier frequency offset, and overcomes the impact of ICI. The simulator results show that the algorithm can work properly at low SNR.
Keywords :
AWGN channels; OFDM modulation; correlation methods; delay lock loops; synchronisation; timing; AWGN channel; OFDM signal waveform; additive white Gaussian noise channel; correlation sequence; delay lock loop algorithm; low SNR; received signal; signal to noise ratio; simulator results; waveform-based timing tracking; Additive white noise; Autocorrelation; Digital video broadcasting; Frequency synchronization; Gaussian noise; OFDM modulation; Programmable logic arrays; Signal analysis; Timing; Tracking loops;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1180586
