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Suboptimal Rate Adaptive Resource Allocation for Downlink OFDMA Systems
Joint Authors
Sadr, Sanam
Raahemifar, Kaamran
Anpalagan, Alagan
Source
International Journal of Vehicular Technology
Issue
Vol. 2009, Issue 2009 (31 Dec. 2009), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2009-08-18
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Telecommunications Engineering
Electronic engineering
Abstract EN
This paper aims to study the performance of low complexity adaptive resource allocation in the downlink of OFDMA systems with fixed or variable rate requirements (with fairness consideration).
Two suboptimal resource allocation algorithms are proposed using the simplifying assumption of transmit power over the entire bandwidth.
The objective of the first algorithm is to maximize the total throughput while maintaining rate proportionality among the users.
The proposed suboptimal algorithm prioritizes the user with the highest sensitivity to the subcarrier allocation, and the variance over the subchannel gains is used to define the sensitivity of each user.
The second algorithm concerns rate adaptive resource allocation in multiuser systems with fixed rate constraints.
We propose a suboptimal joint subchannel and power allocation algorithm which prioritizes the users with the highest required data rates.
The main feature of this algorithm is its low complexity while achieving the rate requirements.
American Psychological Association (APA)
Sadr, Sanam& Anpalagan, Alagan& Raahemifar, Kaamran. 2009. Suboptimal Rate Adaptive Resource Allocation for Downlink OFDMA Systems. International Journal of Vehicular Technology،Vol. 2009, no. 2009, pp.1-10.
https://search.emarefa.net/detail/BIM-505826
Modern Language Association (MLA)
Sadr, Sanam…[et al.]. Suboptimal Rate Adaptive Resource Allocation for Downlink OFDMA Systems. International Journal of Vehicular Technology No. 2009 (2009), pp.1-10.
https://search.emarefa.net/detail/BIM-505826
American Medical Association (AMA)
Sadr, Sanam& Anpalagan, Alagan& Raahemifar, Kaamran. Suboptimal Rate Adaptive Resource Allocation for Downlink OFDMA Systems. International Journal of Vehicular Technology. 2009. Vol. 2009, no. 2009, pp.1-10.
https://search.emarefa.net/detail/BIM-505826
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-505826