GreenTouch: transparent energy management for cellular data radios

Shravan Aras, C. Gniady
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引用次数: 4

Abstract

Smartphones come equipped with multiple radios for cellular data communication such as 4G LTE, 3G, and 2G, that offer different bandwidths and power profiles. 4G LTE offers the highest bandwidth and is desired by users as it offers quick response while browsing the Internet, streaming media, or utilizing numerous network aware applications available to users. However, majority of the time this high bandwidth level is unnecessary, and the bandwidth demand can be easily met by 3G radios at a reduced power level. While 2G radios demand even lower power, they do not offer adequate bandwidth to meet the demand of interactive applications; however, the 2G radio may be utilized to provide connectivity when the phone is in the standby mode. To address different demands for bandwidth, we propose GreenTouch, a system that dynamically adapts to the bandwidth demand and system state by switching between 4G LTE, 3G, and 2G with the goal of minimizing delays and maximizing energy efficiency. GreenTouch associates users' behavior to network activity through capturing and correlating user interactions with the touch display. We have used top applications on the Google play store to show the potential of GreenTouch to reduce energy consumption of the radios by 10%, on average, compared to running the applications in the standard Android. This translates to an overall energy savings of 7.5% for the entire smartphone.
绿色触摸:透明的能量管理的蜂窝数据无线电
智能手机配备了多种无线电,用于蜂窝数据通信,如4G LTE、3G和2G,提供不同的带宽和功率配置。4G LTE提供了最高的带宽,是用户所期望的,因为它在浏览互联网,流媒体或利用用户可用的众多网络感知应用程序时提供了快速响应。然而,在大多数情况下,这种高带宽水平是不必要的,带宽需求可以很容易地满足3G无线电在降低功率水平。虽然第二代无线电所需的功率更低,但它们无法提供足够的带宽来满足交互式应用的需求;但是,当手机处于待机模式时,可以利用2G无线电提供连接。为了满足不同的带宽需求,我们提出了GreenTouch系统,该系统通过在4G LTE, 3G和2G之间切换来动态适应带宽需求和系统状态,目标是最小化延迟和最大化能源效率。GreenTouch通过捕捉和关联用户与触摸显示器的互动,将用户的行为与网络活动联系起来。我们使用了Google play商店的顶级应用程序来展示GreenTouch的潜力,与在标准Android上运行应用程序相比,它可以平均减少10%的无线电能耗。这意味着整个智能手机整体节能7.5%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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