Joint resource allocation and user association for heterogeneous cloud radio access networks

Lee, Ying Loong, Wang, Li-Chun, Chuah, Teong Chee and Loo, Jonathan (2016) Joint resource allocation and user association for heterogeneous cloud radio access networks. In: 28th International Teletraffic Congress (ITC 28), 12-16 Sep 2016, Würzburg, Germany.

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Abstract

Cloud radio access networks (C-RANs) have been regarded as a promising architecture for energy-efficient fifth generation systems. In this paper, a new joint remote radio head (RRH) activation, user-RRH pairing and resource allocation strategy is proposed for heterogeneous C-RANs (H-CRANs). We first formulate an optimization problem to maximize the energy efficiency of H-CRANs. Then, a low-complexity suboptimal solution is developed. Our proposed mechanism consists of three key procedures: 1) RRH activation is performed based on greedy RRH selection, 2) user-RRH pairing is performed based on the channel quality, 3) the resource allocation problem is solved by dual decomposition. Simulation results show that the proposed strategy can improve energy efficiency significantly.

Item Type: Conference or Workshop Item (Paper)
ISBN: 9781509013043
Identifier: 10.1109/ITC-28.2016.120
Page Range: pp. 87-93
Uncontrolled Keywords: H-CRAN; RRH activation; user association; resource allocation; energy efficiency
Subjects: Computing > Systems > Computer networking
Computing
Depositing User: Jonathan Loo
Date Deposited: 21 Jun 2017 15:32
Last Modified: 13 Oct 2017 11:53
URI: http://repository.uwl.ac.uk/id/eprint/3468

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