By Topic

Iterative channel estimation using joint zero padding and nonzero padding for TDS-OFDM systems

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
$33 $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)
Ali Shah, R. ; Asian Inst. of Technol., Pathumthani, Thailand ; Saengudomlert, P.

This paper focuses on the use of guard intervals (GIs) between successive symbols for iterative channel estimation (CE) in a time domain synchronous orthogonal frequency division multiplexing (TDS-OFDM) system. A hybrid of zero padding (ZP) and nonzero padding (NZP) frame structures is proposed to create an energy efficient scheme that can maintain accurate CE as well as a low transmission bit error rate (BER). The proposed hybrid scheme, i.e., joint zero padding-nonzero padding (ZP-NZP) scheme, is tested in Rayleigh fading channel environments using computer simulations. The results show that, for the same BER performance, the proposed joint ZP-NZP scheme outperforms the existing NZP scheme on the basis of the reduction in the required signal-to-noise ratio (SNR) while its CE results are comparable to the existing NZP scheme.

Published in:

Electrical Engineering/Electronics Computer Telecommunications and Information Technology (ECTI-CON), 2010 International Conference on

Date of Conference:

19-21 May 2010