摘要
针对现有蜂窝网络运营中基站能耗过高的问题,提出一种基站休眠算法。该算法首先将网络表示成基站、用户以及他们的连接关系的二部图,在此基础上对用户服务质量和基站节能进行非线性加权得到基站休眠机制,将基站休眠机制与基站常开机制作对比,然后建模为0-1规划模型。仿真结果表明:当采用非线性加权算法选择用户连通性时,不论是在简单蜂窝网络中还是在中继蜂窝网络中,选取适当的加权系数——权值系数,可使中断率和激活基站数达到两者的最优值中,网络的能效有较大的提高。该算法能提高基站节能减排效率,符合中国能源结构的演进趋势。
In view of the high energy consumption of the base station in the cellular network, this paper proposes a base station sleeping algorithm, which first expresses the network as a bigraph of base stations, users and the connection between them. Based on the bigraph, it is possible to combine the customer service quality and base station energy by a nonlinear weighted algorithm, got the base station sleep mechanism, compare with the sleep mechanism and the all on mechanism, and then establish their 0-1 programming model. Simulation results show that, when using nonlinear weighted algorithm to select user connectivity, both in simple cellular network and with relays in the cellular network, select the appropriate weight coefficient, can make the outage probability and the active number of base stations to reach the optimal compromise, improving the energy efficiency significantly. The algorithm can improve the efficiency of base station for energy saving, in accordance with China＇s structure evolution trend.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2014年第12期142-146,共5页
Journal of Wuhan University of Technology
基金
国家自然科学基金(61471180)
湖北省自然科学基金(2013CFB188)
湖北省高等学校优秀中青年科技团队计划(T201431)
文华学院培育基金(2013Y08)
关键词
无线通信
能效优化
基站节能
基站休眠机制
非线性加权算法
wireless communication
energy efficiency
base station energy saving
base station sleep mechanism
nonlinear weighting algorithm
