By Topic

Distributed space-time codes with relay preprocessing for low SNR source-relay links

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

1 Author(s)
Birsen Sirkeci-Mergen ; EE Department, San Jose State University, California 95192-0084, USA

In this work, we consider a network formed by a single source-destination pair and multiple cooperating relays. For such networks, in most of the previously proposed schemes, the relays that can decode the source message correctly are allowed to retransmit. Although this is a reasonable relaying strategy in the high SNR regime, it suffers in low SNR ranges where the number of relays that can successfully decode the source message can be small. We propose to use an appropriate mapping of the noisy receptions at the relays followed by a distributed space-time code. The proposed schemes outperform the well-known amplify-and-forward and decode-and-forward strategies.

Published in:

2008 42nd Asilomar Conference on Signals, Systems and Computers

Date of Conference:

26-29 Oct. 2008