REP:一种降低蓝牙设备能耗仿真设计策略  

REP:Policy of Simulation and Design for Reducing Energy Consumption of Bluetooth Devices

作　　者：叶晖[1] 刘华富[1] 王江涛[1] 

机构地区：[1]长沙学院计算机科学与技术系,长沙410003

出　　处：《系统仿真学报》2013年第6期1415-1419,共5页Journal of System Simulation

基　　金：长沙市科技计划项目基金(K110717-11);长沙市科技计划项目基金(K1109012-71-2);湖南省自然科学基金(11jj6059)

摘　　要：蓝牙移动设备在传输各种数据过程中电池能耗较大的矛盾日益突出。针对此问题,提出一种降低蓝牙设备电池能耗的仿真设计策略:REP(Reduce Energy Policy)。该仿真设计针对文件传输过程中的能量消耗问题展开研究,提出了相应的仿真模型,该模型提取了蓝牙文件传输过程中七个主要的状态,进而基于蓝牙协议规范中的状态机分别对蓝牙主从设备所处状态进行判定,并根据具体数据的传输情况采用控制扫描窗口尺寸,角色切换调度等措施来降低蓝牙通信过程中一些不必要的能耗。实验床结果表明策略与标准的蓝牙通讯流程相比,能降低设备的能量消耗7%-24%左右,并可有效缩短数据端到端延迟。The conflicts of Bluetooth devices power consumption have become increasingly prominent during the data transfer process.Therefore,a policy was proposed which could reduce the power consumption of Bluetooth device,referred as REP（Reduce Energy Policy）.The REP studied the power consumption problem in file transmission process and proposed the simulation model.It chose the main seven states in data communication process.And it judged the state of equipment based on state machine of Bluetooth specification.Moreover,according to the specific transmission of data,the REP utilized the setting of scan window size and role switch procedure to reduce the unnecessary power consumption of Bluetooth device.The testbed results show that the policy can reduce the power consumption about 7%-24% in comparison of the standard Bluetooth communication processes.Furthermore,the latency of remote data access is reduced effectively.

关 键 词：蓝牙 电池能耗 扫描窗口 端到端延迟 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]