Cart (Loading....) | Create Account
Close category search window

Channel estimation for space time coded OFDM systems in non-sample-spaced multipath channels

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Chen, R. ; Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China ; Letaief, K.B.

Space-time (ST) coded OFDM has been proved to be an effective and promising technique for future wideband wireless data access. As the multiple transmit antennas transmit signals act as co-channel interference to each other, the channel estimation for ST-coded OFDM systems is different from the single transmit antenna scenario. Channel estimation can be achieved by estimating the channel impulse response based upon a discrete Fourier transform (DFT). However, in a multipath channel with non-sample-spaced time delays, this approach will cause power leakage and result in an error floor. In this paper, based on the use of IPIC DLL (interpath interference cancellation delay locked loop), we propose a least square (LS) and minimum mean square error (MMSE) channel estimators for ST-coded OFDM with non-sample-spaced multipath time delays. It is shown that the proposed channel estimators can eliminate the error floor substantially and perform quite close to the case with ideal channel state information.

Published in:

Wireless Communications and Networking Conference, 2002. WCNC2002. 2002 IEEE  (Volume:1 )

Date of Conference:

17-21 Mar 2002

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.