Title :
Synchronization algorithm of an OFDM-based IEEE802.11a transmission system
Author :
Chen, Kuixi ; Lu, Jihua ; Xia, Wanying ; Zhang, Ji´ao ; Huang, Shanshi ; Ma, Yixin
Author_Institution :
Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
Abstract :
IEEE802.11a standard has received considerable attention for adopting multi-carrier modulation called OFDM to improve the performance of data transmission and the effect of resisting multipath expansion. We build an OFDM-based IEEE802.11a platform and do some research on the Symbol synchronization in matlab, which using the cyclic preamble information to synchronize. Two synchronization algorithms are performed, which are maximum correlation and minimum mean-squared error (MMSE) method. Moreover, we conduct some simulations and compare the performance of the two algorithms, and then draw the conclusions.
Keywords :
OFDM modulation; least mean squares methods; synchronisation; wireless LAN; MMSE method; Matlab; OFDM-based IEEE802.11a transmission system; cyclic preamble information; maximum correlation method; minimum mean-squared error method; multicarrier modulation; symbol synchronization; Correlation; Estimation; Frequency synchronization; OFDM; Synchronization; Time domain analysis; Training; Symbol synchronizaton based on cyclic preamble; Wireless Local Area Network; maximum correlation; minimum mean-squared error; threshold;
Conference_Titel :
Mobile Congress (GMC), 2011 Global
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-0346-0
DOI :
10.1109/GMC.2011.6103926
