NDLI: Efficient Power Allocation for Decentralized Distributed Space-Time Block Coding

Content Provider	IEEE Xplore Digital Library
Author	Lu Zhang, Cimini, Leonard J.
Copyright Year	2007
Description	Author affiliation: Department of Electrical and Computer Engineering, University of Delaware, Newark, DE 19716 USA (Cimini, Leonard J.) \|\| Department of Electrical and Computer Engineering, University of Delaware, Newark, DE 19716 USA. Email: luzhang@udel.edu (Lu Zhang,)
Abstract	Distributed space-time block coding (Dis-STBC) achieves diversity through cooperative transmission among geographically dispersed nodes. Several decentralized Dis-STBC schemes have been proposed to implement code-assignment at the relays without control signaling. Among the proposed power allocation strategies for decentralized Dis-STBC, the constant-power strategy is decentralized but inefficient; the near-optimal strategy requires some type of control signaling. In this paper, we propose a sub-optimal, decentralized power allocation strategy for decentralized Dis-STBC. In the proposed strategy, the power used by each relay is equal to the power used by source divided by the number of columns in the underlying STBC matrix. The outage analyses and simulations illustrate the power-efficiency advantage of the proposed strategy over the constant-power strategy.
Starting Page	1
Ending Page	6
File Size	204115
Page Count	6
File Format	PDF
ISBN	9781424415120
DOI	10.1109/MILCOM.2007.4455196
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Block codes Relays Decoding Analytical models Cooperative systems Power system relaying Government Centralized control Propagation losses Rayleigh channels
Content Type	Text
Resource Type	Article

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