NDLI: Admission control and resource allocation in a heterogeneous OFDMA wireless network

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Admission control and resource allocation in a heterogeneous OFDMA wireless network

Content Provider	IEEE Xplore Digital Library
Author	Bashar, S. Zhi Ding
Copyright Year	2002
Abstract	We study the problem of admission control and resource (subcarriers, power and bit-loading) allocation in a heterogeneous OFDMA wireless network serving both QoS-constrained high-priority users and best-effort users. By clustering subcarriers, efficient algorithms for cluster and power allocation have been proposed. Our strategy maximizes the total network utility of the best-effort users while satisfying the QoS request for maximum number of high-priority users. We approximate best-effort user utility function as a piece-wise linear function and propose a linear programming based cluster allocation algorithm. The feasibility of the resource allocation problem depends on the number of HP users in the network. Since a large number of demanding HP users would render the resource allocation problem infeasible, a joint admission control and resource allocation scheme could be an efficient way of tackling both problems with less overhead. By incorporating admission control, we propose an efficient and optimal joint admission control and resource allocation algorithm.
File Size	586686
File Format	PDF
ISSN	15361276
Volume Number	8
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Admission control Resource management Wireless networks Clustering algorithms Utility programs Piecewise linear techniques Linear programming Electronic mail Throughput OFDM Admission control, resource allocation, utility function, OFDMA, QoS, feasible rate region
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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