Title :
A novel burst synchronization method for OFDM based WLAN systems
Author :
Guangliang Ren ; Yilin Chang ; Huining Zhang
Author_Institution :
Key Lab. of ISN, Xidian Univ., Xi´´an, China
Abstract :
A new timing and frequency synchronization algorithm is proposed for fast burst synchronization in wireless local area networks (WLANs), which are based on orthogonal frequency division multiplexing (OFDM). In the proposed method, the preamble in WLANs is modified and a new preamble with a typical structure weighted by the pseudo-noise sequence is designed, with which the accuracy of timing offset estimation is significantly improved and the range of frequency offset estimation is enlarged. Simulations demonstrate the performance of the proposed method.
Keywords :
OFDM modulation; frequency estimation; pseudonoise codes; spread spectrum communication; synchronisation; wireless LAN; OFDM; WLAN systems; burst synchronization method; frequency offset estimation; frequency synchronization algorithm; orthogonal frequency division multiplexing; pseudo-noise sequence; timing offset estimation; timing synchronization algorithm; wireless local area network; Accuracy; Frequency division multiplexing; Frequency estimation; Frequency synchronization; Laboratories; Local area networks; OFDM; Robustness; Timing; Wireless LAN;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.2004.1341687
