NDLI: Dynamic resource allocation with finite buffer constraint in broadband OFDMA networks

Content Provider	IEEE Xplore Digital Library
Author	Guoqing Li Hui Liu
Copyright Year	2003
Description	Author affiliation: Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA (Guoqing Li; Hui Liu)
Abstract	This paper presents a dynamic resource allocation scheme for OFDMA-based wireless broadband networks. The problem of maximizing the total packet throughput subject to individual user's outage probability constraint is formulated. The proposed algorithm assumes a finite buffer for the arrival packets and dynamically allocates the radio resource based on users' channel characteristics, traffic patterns and QoS requirements. By performing the radio resource allocation into two steps, namely bandwidth allocation and channel assignment, efficient admission control is realized with low complexity. Specifically, the number of channels to be assigned to each user is first determined based on its traffic requirement and the average SNR. The second stage of the algorithm finds the best channel allocation for the users. Simulations show that the algorithm yields significant lower outage probability and higher throughput than existing multiple access methods.
Starting Page	1037
Ending Page	1042
File Size	423365
Page Count	6
File Format	PDF
ISBN	0780377001
ISSN	15253511
DOI	10.1109/WCNC.2003.1200514
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-03-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resource management Intelligent networks Telecommunication traffic Channel allocation OFDM Interference Throughput Wireless networks Digital video broadcasting Fading
Content Type	Text
Resource Type	Article

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