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Asymptotically optimal cooperative wireless networks with reduced signaling complexity

Elia, Petros and Oggier, Frédérique and Kumar, P. Vijay (2007) Asymptotically optimal cooperative wireless networks with reduced signaling complexity. IEEE Journal on Selected Areas in Communications, 25 (2). pp. 258-267. ISSN 0733-8716. http://resolver.caltech.edu/CaltechAUTHORS:ELIieeejsac07

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Abstract

This paper considers an orthogonal amplify-and-forward (OAF) protocol for cooperative relay communication over Rayleigh-fading channels in which the intermediate relays are permitted to linearly transform the received signal and where the source and relays transmit for equal time durations. The diversity-multiplexing gain (D-MG) tradeoff of the equivalent space-time channel associated to this protocol is determined and a cyclic-division-algebra-based D-MG optimal code constructed. The transmission or signaling alphabet of this code is the union of the QAM constellation and a rotated version of QAM. The size of this signaling alphabet is small in comparison with prior D-MG optimal constructions in the literature and is independent of the number of participating nodes in the network.


Item Type:Article
ORCID:
AuthorORCID
Oggier, Frédérique0000-0003-3141-3118
Additional Information:© Copyright 2007 IEEE. Reprinted with permission. Manuscript received February 1, 2006; revised July 1, 2006. [Posted online: 2007-02-26] This work was carried out while P. Vijay Kumar was on a leave of absence at the Indian Institute of Science Bangalore. This research is also supported in part by NSFITR CCR-0326628 and in part by the DRDO-IISc Program on Advanced Research in Mathematical Engineering. The work of F. Oggier is supported by the Swiss National Science Foundation grant PBEL2-110209.
Funders:
Funding AgencyGrant Number
NSFCCR-0326628
DRDO-IISc Program on Advanced Research in Mathematical EngineeringUNSPECIFIED
Swiss National Science Foundation (SNSF)PBEL2-110209
Subject Keywords:cooperative diversity, distributed space-time code, orthogonal amplify and forward, diversity-multiplexing gain tradeoff, space-time codes, cyclic division algebra codes
Record Number:CaltechAUTHORS:ELIieeejsac07
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:ELIieeejsac07
Alternative URL:http://dx.doi.org/10.1109/JSAC.2007.070203
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:7547
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:02 Mar 2007
Last Modified:16 Oct 2015 18:26

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