Indexed by:会议论文

Date of Publication:2013-12-09

Included Journals:EI、CPCI-S、Scopus

Page Number:2581-2586

Key Words:Energy efficiency; inter-cell interference; cellular networks

Abstract:Inter-cell interference (ICI) and energy efficiency are two important issues in future generation cellular networks. These two issues are studied separately in most of previous works. Since both ICI and energy efficiency have great impacts on user quality of service (QoS) and energy consumption, they should be jointly studied and optimized in a common framework. In addition, most existing centralized schemes solving the ICI and energy efficiency problems may suffer from signaling overhead, outdated dynamics information, and scalability issues. In this paper, we proposed a common framework to dynamically allocate spectral resource to mitigate ICI and to save energy consumption at the same time. Base station (BS) sleep mode and fairness among users are considered in this paper. We first formulate the ICI and energy efficiency issues as a centralized optimization problem, and then we derive a distributed algorithm. Simulation results are presented to show the effectiveness of the proposed scheme.