一种基于幂函数增长的IEEE 802.16e休眠算法  

A Power Function Increase Algorithm for Sleep Mode in IEEE 802.16e

作　　者：陆绍飞[1,2] 王建新[1] 邝月娟[2] 杨贯中[2] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410083 [2]湖南大学软件学院,湖南长沙410082

出　　处：《湖南大学学报（自然科学版）》2010年第8期74-78,共5页Journal of Hunan University:Natural Sciences

基　　金：国家自然科学基金资助项目(60673164)

摘　　要：为了减少移动站点的功率消耗,降低服务基站空中资源的使用,IEEE 802.16e引入了休眠模式,移动站点在与服务基站协商后进入休眠周期并暂时终止业务服务.提出了一种统一的休眠模式增长模型,通过增长因子a调节休眠间隔的变化趋势,满足不同业务的服务质量要求.重点分析了a>0时不同休眠间隔增长算法在平均能量消耗与平均等待时间上的性能表现.实验结果表明当a取1.2时,幂函数休眠算法取得了最好的能耗表现,比指数增长算法降低了约11%的能耗,同时减少了近55%的平均等待时间.In order to reduce the power consumption of mobile stations and the air interface resource utilization of serving base stations,IEEE802.16eintroduced a sleep mode,in which a mobile station stopped its normal service.In order to balance the average energy consumption and the average waiting time,this paper proposed a power function increase algorithm for the sleep mode.According to different traffic requirements,this algorithm can adjust the increase of sleep interval with different a.Average response time and average power consumption are two performance measurements.Through numerical analysis and simulation experiments,the authors compared the above two performance measurements of different sleep mode algorithms under a0.Simulation results have shown that the power function increase algorithm with a=1.2has the lowest average power consumption.It saves the average energy consumption by 11% and decreases the response time by 55%,compared with the exponential algorithm.

关 键 词：IEEE 802.16e 休眠模式 幂函数增长 节能 响应时间 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]