Leveraging Parallel Communications for Minimizing Energy Consumption on Smartphones
Leveraging Parallel Communications for Minimizing Energy Consumption on Smartphones
复制标题
利用并行通信最大限度地减少智能手机的能耗
DOI：
10.1109/tpds.2014.2360693
复制
发表时间：
2015
影响因子：
5.3
通讯作者：
Taavi Teemaa
中科院分区：
文献类型：
--
作者：
M. Conti;B. Crispo;Daniele Diodati;J. Nurminen;M. C. Pinotti;Taavi Teemaa
最近对智能手机的能量测量表明，并行通信（例如，数据传输和语音通话）比单独执行所需的能量更少。在这些结果的指导下，我们研究了对通信调度的可能性，以最大限度地减少能源消耗。为了节约能源，我们定义了两个延迟容忍服务的能量优化问题，并将其与实时服务并行执行。第一个问题称为单容忍延迟分配（SDA），它最多允许一个容忍延迟服务与每个实时服务配对，而第二个问题称为多容忍延迟分配（MDA），它允许多个容忍延迟服务（在不同时间）与同一实时服务配对。对于SDA问题，我们提出了一种最优算法。对于难以计算的MDA问题，我们给出了一种近似算法。我们通过模拟合成轨迹来评估节能配对策略的效益。假设智能手机密集使用，在4G网络下，MDA算法最多可以节省60%的能耗，而SDA算法最多可以节省20%的能耗。
Recent energy measurements on smartphones have shown that parallel communications (e.g., data transfer and voice call) require less energy than their stand-alone execution. Guided by these results, we investigate the possibility of scheduling communications in pairs for minimizing the energy consumption. We define two energy optimization problems to postpone delay-tolerant services and perform them in parallel with real-time services in order to save energy. The first problem, called single delay-tolerant assignment (SDA), allows at most one delay-tolerant service to be paired with each real-time service, whereas the second problem, called multiple delay-tolerant assignment (MDA), allows multiple delay-tolerant services to be paired (in different times) with the same real-time service. For the SDA problem, we propose an optimal algorithm. For the MDA problem, which is computationally intractable, we give an approximation algorithm. We evaluate the benefits of the energy-efficient pairing strategy via simulations on synthetic traces. The MDA algorithm can save up to the 60 percent of the energy consumption using 4G network assuming an intensive smartphone usage, while the SDA algorithm saves up to the 20 percent.
影响因子：
35.6
作者：
Vallina-Rodriguez, Narseo;Crowcroft, Jon
通讯作者：
Crowcroft, Jon