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

fYear

2009

fDate

27-29 Oct. 2009

Firstpage

1206

Lastpage

1209

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/MAPE.2009.5355822

Filename

5355822