摘要
针对现有异构无线网络节能方法未能充分发挥网间协作潜力,缺乏载频、基站等不同粒度关断技术的综合应用及理论分析,节能效果有待进一步提高的问题,提出一种基于动态门限的异构无线网络协作节能算法(ESDT:Energy Saving Algorithm Based on Dynamic Thresholds)。该算法将载频、基站等不同粒度关断技术相结合,以最小化系统整体能耗为目标,应用排队理论对门限值进行动态调整,根据系统负载变化,动态开关多粒度资源。仿真结果表明,在保证系统接入阻塞率的前提下,该算法与动态开关载频单一粒度节能算法相比,节能效果更佳,资源利用率更高。
In existing energy-saving methods for heterogeneous wireless networks,the potential for inter-network collaboration has not been brought into full play,lack of the comprehensive application and theoretical analysis of carrier frequency turn-off technology and base station turn-off technology result in unsatisfactory energy-saving effect.In order to solve the problem,this paper proposes a cooperative ESDT（Energy Saving Algorithm Based on Dynamic Thresholds） in heterogeneous wireless networks.Aiming at minimizing the overall system energy consumption,the algorithm combines carrier frequency turn-off technology and base station turn-off technology,and applies queuing theory to adjust thresholds and dynamically turn on/off multi-granularity resources according to system load condition to achieve energy-saving effect.Simulation results show that the proposed algorithm compared to the algorithm dynamically switching the carrier frequency,has better energy-saving effect and higher resource utilization on the premise of the guarantee system performance.
出处
《吉林大学学报（信息科学版）》
CAS
2014年第1期20-28,共9页
Journal of Jilin University（Information Science Edition）
关键词
异构无线网络
动态门限
协作节能算法
heterogeneous wireless networks
dynamic thresholds
collaboration energy-saving algorithm
