NDLI: Policy-based multiple access for decentralized low power systems

Content Provider	IEEE Xplore Digital Library
Author	Muharemovic, T. Sabharwal, A. Aazhang, B.
Copyright Year	2002
Abstract	In this paper, we present an information theoretic study of a decentralized multiple access channel (MAC), where users are allowed to autonomously change their data rates, transmission powers, and channel codes, independently from other users in the system. We introduce a policy-based access mechanism, where each user is allocated a set of code-books, with various data rates and powers. Successful reception of all users is guaranteed, provided that each of the users adheres to its assigned access policy, when selecting its date rate and power. We completely characterize the capacity region for such policy-based access in the low power regime, for both single and multi-antenna (MIMO) systems, and we show that nonorthogonal policies outperform orthogonal ones. We also show that known MIMO capacity scaling laws, which apply in single user systems, carry over into framework of decentralized MAC.
Starting Page	256
Ending Page	267
Page Count	12
File Size	378281
File Format	PDF
ISSN	15361276
Volume Number	8
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power systems MIMO Centralized control Automatic control Control systems Decoding Instruments Electronic mail Multiuser channels Time division multiple access Policy Multiple Access Low-Power Regime Spectral Efficiency Multi - Antenna Antenna Correlation Ad - Hoc Decentralized Multiple Access
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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