Dynamic resource management for LTE-based hybrid access femtocell systems

Ying Loong, Lee, Loo, Jonathan ORCID: https://orcid.org/0000-0002-2197-8126 and Chuah, Teong Chee (2018) Dynamic resource management for LTE-based hybrid access femtocell systems. IEEE Systems Journal, 12 (1). ISSN 1932-8184

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Hybrid access femtocells for long term evolution (LTE)-based cellular networks provide a tradeoff between closed and open access femtocells whereby all subscribers are granted access albeit with priority given to closed access subscribers. Due to the need to accommodate both closed and open access subscribers, quality of service (QoS) provisioning for LTE-based hybrid access femtocells has become more challenging. This paper addresses this issue and proposes a new dynamic resource management scheme for such hybrid architectures. In particular, the proposed scheme first classifies and performs lexicographic admission control on the incoming traffic data flows using an optimal greedy algorithm. A suboptimal delay-bounded packet scheduling algorithm and a dual decomposition-based power allocation algorithm are developed to solve the non-convex maximization problem such that the weighted sum rate of each femtocell is maximized, subject to bounded packet delays and power constraints. Simulation results show that the proposed scheme can significantly outperform existing schemes in terms of QoS, throughput and fairness.

Item Type: Article
Identifier: 10.1109/JSYST.2016.2569825
Additional Information: © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: Admission control, fairness, hybrid access femtocell, long term evolution (LTE), packet scheduling, power allocation, quality of service (QoS).
Subjects: Computing > Systems > Computer networking
Construction and engineering > Electrical and electronic engineering
Depositing User: Jonathan Loo
Date Deposited: 19 Jun 2017 07:46
Last Modified: 28 Aug 2021 07:23
URI: https://repository.uwl.ac.uk/id/eprint/3442


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