Title :
Symbol Time Error and Channel Estimation in Wireless OFDM LAN/MAN
Author :
Qin, Shengping ; Shang, Zhanlei ; Zhang, Xin ; Liu, Peide ; Zhou, Zheng
Author_Institution :
Inf. Manage. Sch., Shandong Economic Univ., Jinan
Abstract :
OFDM is a promising high-speed data transmission platform, and wireless OFDM LAN/MAN has rapidly developed since some OFDM network technologies were standardized. In this paper, the wireless OFDM LAN/MAN topological structures are described, and a novel symbol time error and channel estimation algorithm for the wireless OFDM LAN/MAN based on the PSD estimation is presented. The results of simulation prove the mean and variance of data symbol time error estimation based on the PSD estimation is low, and the channel estimation based on the PSD estimation is more precise than the LS estimation.
Keywords :
OFDM modulation; channel estimation; data communication; metropolitan area networks; telecommunication network topology; wireless LAN; PSD estimation; channel estimation; high-speed data transmission; symbol time error; topological structures; wireless OFDM LAN; wireless OFDM MAN; Base stations; Channel estimation; Computer networks; Error analysis; Frequency synchronization; Intersymbol interference; Local area networks; Multipath channels; OFDM; Wireless LAN; OFDM; PSD; channel estimation; symbol time error estimation;
Conference_Titel :
Young Computer Scientists, 2008. ICYCS 2008. The 9th International Conference for
Conference_Location :
Hunan
Print_ISBN :
978-0-7695-3398-8
Electronic_ISBN :
978-0-7695-3398-8
DOI :
10.1109/ICYCS.2008.246
