Title :
A synchronization algorithm based on pilot symbols for OFDM in wideband HF communications
Author :
Chunrong, Kan ; Ying, Liu ; Tingchang, Wang
Author_Institution :
Inst. of Commun. Eng., Nanjing, China
Abstract :
In allusion to the characteristics of an HF channel, a synchronization scheme is proposed in this paper for the low SNR condition. Based on pilot symbols employing a PN sequence, a reliable signal synchronization scheme is obtained. Utilized the special structure of the PN sequence in the pilot symbols, the frequency and time offset is captured. Theoretic analysis and simulations show that this scheme works properly at low SNR in HF communications.
Keywords :
Monte Carlo methods; OFDM modulation; pseudonoise codes; synchronisation; Monte Carlo techniques; OFDM; PN sequence; frequency offset estimation method; low SNR channel; pilot symbol based synchronization algorithm; pseudo noise sequence; time offset estimation; wideband HF communications; Additive white noise; Clocks; Fading; Frequency estimation; Frequency synchronization; Gaussian noise; Interference; OFDM; Signal to noise ratio; Wideband;
Conference_Titel :
Radio Science Conference, 2004. Proceedings. 2004 Asia-Pacific
Print_ISBN :
0-7803-8404-0
DOI :
10.1109/APRASC.2004.1422420
