Throughput maximization with buffer constraints in broadband OFDMA networks

The paper presents a radio resource allocation scheme for OFDMA-based wireless broadband networks. The problem of maximizing the base-station packet throughput subject to individual users' outage probability constraints is formulated. The proposed algorithm assumes a finite buffer for the arriv...

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Bibliographic Details
Published in2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03) Vol. 4; pp. IV - 197
Main Authors Guoqing Li, Hui Liu
Format Conference Proceeding
LanguageEnglish
Published IEEE 2003
Subjects
Base stations
Buffer overflow
Channel allocation
Constraint optimization
Degradation
Intelligent networks
OFDM modulation
Resource management
Throughput
Traffic control
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ISBN9780780376632
0780376633
ISSN1520-6149
DOI10.1109/ICASSP.2003.1202591

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Summary:The paper presents a radio resource allocation scheme for OFDMA-based wireless broadband networks. The problem of maximizing the base-station packet throughput subject to individual users' outage probability constraints is formulated. The proposed algorithm assumes a finite buffer for the arrival packets and allocates the radio resource based on users' channel characteristics and traffic patterns. By performing the radio resource allocation in two steps, namely bandwidth allocation and channel assignment, admission control is realized with low complexity. Simulations show that the algorithm yields significant lower outage probability and higher throughput compared to existing multiple access methods.
ISBN:9780780376632
0780376633
ISSN:1520-6149
DOI:10.1109/ICASSP.2003.1202591