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

Optimal Joint Spatial and Temporal Power Adaptation for Space-Time-Coded Systems With Imperfect CSI

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

3 Author(s)
Quan Kuang ; Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong, China ; Shu-hung Leung ; Xiangbin Yu

In this correspondence, a joint optimization of spatio-temporal (S-T) power allocation to minimize the average bit error rate (BER) subject to an average power constraint is developed for beamforming orthogonal space-time block coded multiantenna systems over flat Rayleigh fading channels in the presence of imperfect channel state information at the transmitter (CSIT). Compared to the spatial-only (S-O) power allocation methods, the optimal S-T strategy reduces BER significantly. It can be used as a benchmark to evaluate the existing suboptimal S-T schemes. A necessary and sufficient condition, which can determine the number of eigenbeams being used for optimal S-T power allocation without computing power allocation, is derived. This result can greatly simplify the power allocation algorithm. Numerical results show that the proposed optimal S-T algorithm has not only the best BER performance, but also the lowest computational complexity in comparison with the existing S-T strategies.

Published in:

Signal Processing, IEEE Transactions on  (Volume:60 ,  Issue: 6 )

Date of Publication:

June 2012

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.