基于动态门限的异构无线网络协作节能算法  

Cooperative Energy-Saving Algorithm Based on Dynamic Thresholds in Heterogeneous Wireless Networks

作　　者：李志军[1] 孙波[2] 赵颖[1] 宋振[2] 董浩[1] 

机构地区：[1]吉林大学通信工程学院 [2]中国人民解放军61755部队

出　　处：《吉林大学学报（信息科学版）》2014年第1期20-28,共9页Journal of Jilin University（Information Science Edition）

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.

关 键 词：异构无线网络 动态门限 协作节能算法 

分 类 号：TN929.53[电子电信—通信与信息系统]