NDLI: Adaptive Power Allocation for Regenerative Multi-Relay System Based on Capacity-Approaching Distributed Space-Time Codes

Content Provider	IEEE Xplore Digital Library
Author	Wang Zizhou Zhu Guiwei Wang Yafeng Yang Dacheng
Copyright Year	2007
Description	Author affiliation: Wireless Theories & Technol. Lab, Beijing Univ. of Posts & Telecommun. (Wang Zizhou; Zhu Guiwei; Wang Yafeng; Yang Dacheng)
Abstract	The idea of distributed space-time codes which is being applied to wireless relay network, seems to be a promising approach to reduce the total radiated power and to insure the delivery of the information with desired quality of service. In this paper, we propose a feasible coding scheme based on distributed linear dispersion codes (LDC) for two-hop regenerative multi-relay scenario, and further analyze the advantage of the proposed case in terms of capacity gains over the system with orthogonal transmission. Moreover, we show how to effectively allocate the limited resource among the source and relay terminals in order to maximize the performance of the proposed system. Numerical results indicate that with the adaptive scheme, the proposed system not only achieves higher capacity gains than the system with direct transmission and traditional uniform PA, but also performs very close to the optimum relay system.
Starting Page	2145
Ending Page	2149
File Size	364675
Page Count	5
File Format	PDF
ISBN	1424402662
ISSN	15502252
DOI	10.1109/VETECS.2007.443
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-04-22
Publisher Place	Ireland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Space time codes Relays Power system relaying Receiving antennas Mobile antennas Resource management Performance gain Adaptive systems Space technology Electronic mail
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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