標題: Joint Base Station Association and Radio Resource Allocation for Downlink Carrier Aggregation in LTE-Advanced Systems
作者: Li, Pei-Rong
Kuo, Chih-Wei
Feng, Kai-Ten
Chang, Tain-Sao
電機學院
College of Electrical and Computer Engineering
公開日期: 2015
摘要: The deployment of small cells with carrier aggregation (CA) technique is a significant feature of next-generation cellular networks. The potential benefits of dense base stations (BSs) deployment are provided by using proper interference management mechanisms. Meanwhile, the user equipments (UEs) can simultaneously access multiple component carriers (CCs) to meet the dramatically increased traffic demand by means of CA. In this paper, an optimization problem consists of UE-BS association, CC configuration, frequency resources scheduling, and power allocation with adaptive modulation schemes is investigated to enhance energy efficiency, focusing on the quality of service (QoS)-aware CA. To obtain the near-optimal solutions as well as the consideration of computational complexity, a cross-entropy-based algorithm (CEA) is proposed to jointly solve the combinatorial problem. Compared to the traditional heuristic algorithms, the merits of proposed scheme can be observed via simulation results.
URI: http://hdl.handle.net/11536/134490
ISBN: 978-1-4799-8088-8
ISSN: 1550-2252
期刊: 2015 IEEE 81ST VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING)
Appears in Collections:Conferences Paper