標題: Joint Resource Allocation and User Association for Heterogeneous Cloud Radio Access Networks
作者: Lee, Ying Loong
Wang, Li-Chun
Chuah, Teong Chee
Loo, Jonathan
電機工程學系
Department of Electrical and Computer Engineering
關鍵字: H-CRAN;RRH activation;user association;resource allocation;energy efficiency
公開日期: 2016
摘要: 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.
URI: http://hdl.handle.net/11536/135258
ISBN: 978-0-9883-0451-2
期刊: 2016 28TH INTERNATIONAL TELETRAFFIC CONGRESS (ITC 28), VOL 1
起始頁: 87
結束頁: 93
Appears in Collections:Conferences Paper