By Topic

Joint-design of adaptive modulation and coding with adaptive ARQ for cooperative relay networks

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)
Annamalai, A. ; Dept. of Electr. & Comput. Eng., Prairie View A&M Univ., Prairie View, TX, USA ; Modi, B. ; Olabiyi, O.

This article investigates the efficacy of a joint-design of adaptive modulation and coding (AMC) at the physical (PHY) layer with an adaptive Rmax-truncated selective-repeat automatic repeat request (ARQ) protocol at the medium access control (MAC) layer to maximize the throughput of cooperative amplify-and-forward (CAF) relay networks under prescribed delay and/or error performance constraints. Specifically, we generalize the existing design/results for cross-layer combining of AMC with truncated ARQ in non-cooperative diversity systems in three-folds: (i) extension of the cross-layer PHY/MAC design or optimization to cooperative diversity systems; (ii) generalization/unification of analytical expressions for various network performance metrics to generalized block fading channels with independent but non-identically distributed (i.n.d) fading statistics among the spatially distributed nodes; (iii) investigation of the effectiveness of joint-adaptation of the maximum retransmission limit Rmax in ARQ protocol and cooperative diversity order N for delay-insensitive applications. Our numerical results reveal that the average throughput can be increased considerably by judiciously combining two additional degrees of freedom (N and Rmax) that are available in CAF relay networks besides employing AMC at the PHY layer, especially in the most challenging low signal-to-noise ratio (SNR) regime.

Published in:


Date of Conference:

7-10 Nov. 2011