Zhang, H., Zheng, W., Wen, X. et al. (4 more authors) (2012) Joint subchannel and power allocation in interference-limited OFDMA femtocells with heterogeneous QoS guarantee. In: GLOBECOM - IEEE Global Telecommunications Conference. Global Communications Conference (GLOBECOM), 2012 IEEE , 03-07 Dec 2012, Anaheim, CA . , 4572 - 4577. ISBN 978-1-4673-0920-2
Abstract
In this paper, we consider the joint subchannel and power allocation problem in both the uplink and the downlink for two-tier networks comprising spectrum-sharing macrocells and femtocells. A joint subchannel and power allocation scheme for co-channel femtocells is proposed, aiming to maximize the capacity for delay-tolerant users subject to delay-sensitive users' quality of service and interference constraints imposed by macrocells. The joint subchannel and power allocation problem is modeled as an mixed integer programming problem, then transformed into a convex optimization problem by relaxing subchannel sharing, and finally solved by a dual decomposition approach. The effectiveness of the proposed approach is verified by simulations and compared with existing scheme. © 2012 IEEE.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 17 Jun 2014 12:24 |
Last Modified: | 19 Dec 2022 13:25 |
Published Version: | http://dx.doi.org/10.1109/GLOCOM.2012.6503839 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1109/GLOCOM.2012.6503839 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:77295 |
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