Race-to-sleep + content caching + display caching

Zhang, Haibo; Rengasamy, Prasanna Venkatesh; Zhao, Shulin; Nachiappan, Nachiappan Chidambaram; Sivasubramaniam, Anand; Kandemir, Mahmut; Iyer, Ravi; Das, Chita R.

doi:10.1145/3123939.3123948

Cited by 25 publications

(1 citation statement)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…DORA, a dynamic frequency controller for energy efficient mobile web browsing was introduced [49]. For streaming-based mobile applications, a combination of race-to-sleep, content, and display caching techniques was proposed to improve energy efficiency [61]. Human factors were also considered for architecture design and power management.…”

Section: Related Workmentioning

confidence: 99%

Toward Customized Hybrid Fuel-Cell and Battery-powered Mobile Device for Individual Users

Yan

Tan

Liu

et al. 2019

ACM Trans. Embed. Comput. Syst.

View full text Add to dashboard Cite

Rapidly evolving technologies and applications of mobile devices inevitably increase the power demands on the battery. However, the development of batteries can hardly keep pace with the fast-growing demands, leading to short battery life, which becomes the top complaints from customers. In this article, we investigate a novel energy supply technology, fuel cell (FC), and leverage its advantages of providing long-term energy storage to build a hybrid FC-battery power system. Therefore, mobile device operation time is dramatically extended, and users are no longer bothered by battery recharging. We examine real-world smartphone usage data and find that a naive hybrid power system cannot meet many users’ highly diversified power demands. We thus propose an OS-level power management policy that reduces the device power consumption for each power peak to solve this mismatch. This technique trades the quality-of-service (QoS) for a larger FC ratio in the system and thus much longer device operation time. We further observe that the user’s personality largely determines his/her satisfaction with the QoS degradation and the operation time extension. Thus, applying a hybrid system with fixed configuration (i.e., peak throttling level coupled with corresponding FC/battery ratio) fails to satisfy every user. We then explore customized hybrid system configuration based on each individual user’s personality to deliver the optimal satisfaction for him/her. The experimental results show that our personality-aware hybrid FC-battery solution can achieve 4× longer operation time and 25% higher satisfaction score compared to the common setting for state-of-the-art mobile devices.

show abstract

Section: Related Workmentioning

confidence: 99%