By Topic

Equalization of MIMO-ISI channels based on Gaussian message passing in factor graphs

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)
Haselmayr, W. ; Inst. for Commun. Eng. & RF-Syst., Johannes Kepler Univ., Linz, Austria ; Etzlinger, B. ; Springer, A.

In this paper we consider a soft-input soft-output equalizer, for MIMO intersymbol interference channels, used in a turbo equalization scheme. We derive the equalizer on the basis of a cyclic factor graph representation and the sum-product algorithm, with two different message schedules (serial and parallel). In the sum-product algorithm we use Gaussian messages, which results in a low-complexity LMMSE equalizer implementation. Computer simulations show that, for the turbo equalization application, the proposed equalizer has a good bit error rate performance compared with the optimal MAP equalizer, while achieving a remarkable reduction in complexity.

Published in:

Turbo Codes and Iterative Information Processing (ISTC), 2012 7th International Symposium on

Date of Conference:

27-31 Aug. 2012