Title :
A detection algorithm based on joint time and frequency offset estimation for OFDM in HF communications
Author :
Chunrong, Kan ; Tingchang, Wang
Author_Institution :
Inst. of Commun. Eng., PLAUST, China
Abstract :
Traditional algorithms for OFDM signal synchronization acquisition usually can work under low SNR. A data aided scheme is proposed for the troublesome HF channels in this paper. Based on joint time and frequency-offset estimation, a reliable signal detection scheme for synchronization is obtained by using an m-sequence. Theoretic analysis and simulations show that this scheme works well in low SNR in HF communications.
Keywords :
HF radio propagation; OFDM modulation; frequency estimation; m-sequences; signal detection; synchronisation; HF communications; OFDM; data aided scheme; joint time-frequency offset estimation; m-sequence; signal detection; signal synchronization acquisition; AWGN; Analytical models; Correlators; Detection algorithms; Frequency estimation; Frequency synchronization; OFDM; Redundancy; Reliability engineering; Signal detection;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2004. ICMMT 4th International Conference on, Proceedings
Print_ISBN :
0-7803-8401-6
DOI :
10.1109/ICMMT.2004.1411664
