NDLI: Minimum Error-Rate Linear Dispersion Codes for Cooperative Relays

Content Provider	IEEE Xplore Digital Library
Author	Kuo-ching Liang Xiaodong Wang Berenguer, I.
Copyright Year	1967
Abstract	Cooperative diversity systems have recently been proposed as a solution to provide spatial diversity for terminals where multiple antennas are not feasible to be implemented. As in multiple-input-multiple-output systems, space-time codes can be used to efficiently exploit the increase in capacity provided in cooperative diversity systems. In this paper, we propose a two-layer linear dispersion (LD) code for cooperative diversity systems and derive a simulation-based optimization algorithm to optimize the LD code and power allocation in terms of block error rate. The proposed code design paradigm can obtain optimal codes under arbitrary fading statistics. Performance comparisons are made to other cooperative diversity schemes. The effect that distances between source, relays, and destination terminals have on the energy allocation between the broadcast and cooperative intervals is also studied. Cooperative diversity, gradient estimation, linear dispersion (LD) codes, multiple-input-multiple-output (MIMO), stochastic approximation.
Sponsorship	IEEE Vehicular Technology Society
Starting Page	2143
Ending Page	2157
Page Count	15
File Size	343579
File Format	PDF
ISSN	00189545
Volume Number	56
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays MIMO Space time codes Error analysis Fading Statistics Power system relaying Protective relaying Broadcasting Stochastic processes stochastic approximation Cooperative diversity gradient estimation linear dispersion (LD) codes multiple-input–multiple-output (MIMO)
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Automotive Engineering Computer Networks and Communications Electrical and Electronic Engineering Aerospace Engineering

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