Title :
A novel timing synchronization for OFDM based WLAN systems
Author :
Wang, Zhenting ; Fang, Zhi ; Shi, Yin ; Chen, Zhiming
Author_Institution :
Xi´´An Univ. of Techonology, Xi´´an, China
Abstract :
The correlation-based method is the popular solution for timing synchronization. The performance of this method is decreased in low signal-to-noise ratio (SNR) because of the limited correlation peaks. In this paper, a new method based on more peaks by using a new structure of the short preamble is proposed. Simulation results show that the proposed approach greatly improves the estimation accuracy of synchronization parameters compared to the conventional schemes over both AWGN and multi-path fading channels at the low SNR.
Keywords :
AWGN channels; OFDM modulation; correlation methods; fading channels; multipath channels; synchronisation; wireless LAN; AWGN channels; OFDM based WLAN systems; correlation-based method; multipath fading channels; signal-to-noise ratio; timing synchronization; Computational complexity; Computational modeling; Fading; Frequency synchronization; Intersymbol interference; Maximum likelihood estimation; OFDM; Signal to noise ratio; Timing; Wireless LAN; OFDM; WLAN; dataaided; symbol synchronization;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2009 3rd IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4076-4
DOI :
10.1109/MAPE.2009.5355822
