By Topic

Improving robustness of precoded MIMO systems with imperfect channel estimation

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)
G. W. K. Colman ; Communications Research Centre, 3701 Carling Ave., Box 11490, Station H, Ottawa, ON, K2H 8S2, CANADA ; T. J. Willink

Low-rate feedback schemes have recently provided a means to achieve near optimal performance in multiple-input multiple-output communications systems while reducing feedback overhead to acceptable levels. In this paper, a bit-error rate expression for precoded systems is derived as a function of the channel estimation uncertainty. Poor channel state estimates are shown to degrade error rate performance significantly; however, if the channel estimation uncertainty is taken into account when selecting feedback parameters, it is shown that target performance can be maintained without wasting resources.

Published in:

2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing

Date of Conference:

23-26 Aug. 2009