By Topic

Channel Estimation Using Frequency-domain Superimposed Pilot Time-Domain Correlation Method for 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

4 Author(s)
Shouyin Liu ; Dept. of Electronics & Information Engineering, Huazhong Normal University, Wuhan 430079, China ; Jinjing Zhan ; Wenwu Xie ; Fan Li

This paper proposes a new channel estimation method based on frequency-domain superimposed pilot time-domain correlation (FSPTC) for orthogonal frequency division multiplexing (OFDM) systems. In this scheme, pilots are directly added on information symbols in frequency-domain at the transmitter without consuming extra bandwidth. At the receiver, we acquire the coarse estimation of channel and information symbols through the correlation between the known pilots and the received signals. More accurate estimation is obtained by iterative operations, which eliminate the effect of unknown information symbols on pilot correlation. The effect of parameters-total number of sub-carriers, the pilot period and the pilot power ratio-on estimation performance is discussed in theory and simulation. The simulation results show that the system performance of our proposed scheme is approximate to the performance under the situation of ideal channel state information (CSI).

Published in:

2006 International Conference on Communication Technology

Date of Conference:

27-30 Nov. 2006