Title :
Robust synchronization and channel estimation for the OFDM-based WLAN systems
Author :
Zheng, Zi-Wei ; Yang, Zhi-Xing ; Pan, Chang-Yong ; Zhu, Yi-Sheng
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
As an effective technique for combating multipath fading and for high data rate transmission over wireless channels, orthogonal frequency division multiplexing (OFDM) is extensively used in wireless local area network (WLAN) systems to support high performance bandwidth-efficient multimedia services. In this paper, novel synchronization and channel estimation schemes are proposed for the OFDM-based WLAN systems. Analyses and simulation results show that the proposed schemes exhibit good performances and are robust in harsh fading channel environments and low signal-to-noise ratio (SNR) conditions.
Keywords :
OFDM modulation; channel estimation; data communication; fading channels; multimedia communication; multipath channels; telecommunication services; wireless LAN; OFDM-based WLAN systems; SNR; bandwidth-efficient multimedia services; channel estimation; fading channel; high data rate transmission; multipath fading; orthogonal frequency division multiplexing; signal-to-noise ratio; wireless channels; wireless local area network; Analytical models; Channel estimation; Fading; Frequency synchronization; Multimedia systems; OFDM; Performance analysis; Robustness; Signal analysis; Wireless LAN;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.2004.1341683
