Title :
A novel scheme for least square based channel estimation in OFDM transmission system
Author :
Venkatesh, C. ; Madheswaran, M.
Author_Institution :
Centre for Adv. Res., Electron. & Commun. Eng., Rasipuram
Abstract :
OFDM has recently been applied widely in wireless communication system due its high data rate transmission capability with high bandwidth efficiency. The channel estimation is playing key role for wireless communication system. In this paper, we present the improved scheme of LS based channel estimation technique using block type pilot arrangement for varying different values of channel impulse responses in OFDM based transmission system. The cyclic prefix length is also varied for different channel conditions. The proposed channel estimation scheme is less complex and efficient than the conventional schemes for OFDM systems.
Keywords :
OFDM modulation; channel estimation; least squares approximations; radiocommunication; transient response; OFDM transmission system; block type pilot arrangement; channel impulse response; cyclic prefix length; data rate transmission capability; least square based channel estimation; wireless communication system; Channel estimation; Data engineering; Delay effects; Delay estimation; Educational institutions; Least squares approximation; Microwave communication; Mobile communication; OFDM; Wireless communication; BER; Channel Estimation; Least Square; OFDM; cyclic prefix;
Conference_Titel :
Recent Advances in Microwave Theory and Applications, 2008. MICROWAVE 2008. International Conference on
Conference_Location :
Jaipur
Print_ISBN :
978-1-4244-2690-4
Electronic_ISBN :
978-1-4244-2691-1
DOI :
10.1109/AMTA.2008.4763138
