缓存门限自适应调整的智能手机节能研究  

Research of Smartphone Energy Saving Based on Buffer Threshold Adaptive Adjustment

作　　者：蒋波[1] 李陶深[1,2] 葛志辉[1,2] 

机构地区：[1]广西大学计算机与电子信息学院,南宁530004 [2]广西高校并行与分布式计算技术重点实验室,南宁530004

出　　处：《计算机科学》2016年第1期137-140,共4页Computer Science

基　　金：国家自然科学基金项目(61363067);广西自然科学基金资助项目(2012GXNS FAA053226)资助

摘　　要：为了解决LTE无线流媒体终端能量利用效率低的问题,提出一种新的基于动态缓存门限调整的流媒体传输控制算法(DBTA)。该算法根据监测到的网络带宽和流媒体编码率信息,对终端缓存区下限阈值做出自适应的调整,使缓存空间大小更契合当前带宽和流媒体编码率,提高了终端的休眠工作时间比,进而延长了终端的续航时间。仿真结果表明,该算法可有效解决LTE无线流媒体终端能耗过快的问题,最多可降低约22%的能耗。To solve the low energy efficiency problem of LTE wireless streaming media terminal,a new energy-efficient streaming media transmission control method based on dynamic buffer threshold adjustment（DBTA）was proposed.This algorithm adaptively adjusts the buffer lower threshold of receiver according to the monitored network bandwidth and streaming media encoding rate information,making the size of the buffer space more fit the current bandwidth and streaming media encoding rate,and improves the time ratio of dormant to work,thereby extending the life of the terminal.Simulation results show that this algorithm（DBTA）can effectively resolve the problems of the excessive energy consumption of LTE wireless streaming media terminal,and achieve up to 22% energy saving.

关 键 词：LTE 移动多媒体流 节能 自适应缓存 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]