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Author Dey, Amit ♦ Navda, Vishnu ♦ Schulman, Aaron ♦ Ramjee, Ramachandran ♦ Aggarwal, Bhavish ♦ Jain, Kamal ♦ Spring, Neil ♦ Padmanabhan, Venkata N. ♦ Chitnis, Pushkar
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Energy ♦ Cloud proxy ♦ Smartphone
Abstract Cellular radio communication is a significant contributor to battery energy drain on smartphones, in some cases inflating the energy cost by a factor of 5 or more compared to the energy cost of the base device. Stratus is a system to reduce this energy consumption by leveraging cloud resources to make data communication on smartphones more efficient. Using a cloud-based proxy, Stratus employs optimizations that adapt an application's incoming and outgoing traffic to better match the energy characteristics of the radio interface. The optimizations include (a) aggregation to bunch up sporadic transmissions, (b) asymmetric dictionary-based compression to reduce the number of bits transmitted over the air, and (c) opportunistic scheduling to avoid communication during periods of poor signal reception. These optimizations can be used individually, or in combination, subject to an application's delay tolerance. For example, using our Stratus prototype, the aggregation and compression optimizations together achieve up to 50% energy savings for web browsing, while the aggregation and scheduling optimizations together achieve up to 35% energy savings for a media streaming application.
Description Affiliation: Microsoft Research India, Bangalore, India (Aggarwal, Bhavish; Chitnis, Pushkar; Dey, Amit; Navda, Vishnu; Padmanabhan, Venkata N.; Ramjee, Ramachandran) || Microsoft Research, Redmond, Redmond, USA (Jain, Kamal) || University of Maryland, College Park, USA (Schulman, Aaron; Spring, Neil)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1993-07-01
Publisher Place New York
Journal ACM SIGCOMM Computer Communication Review (CCRV)
Volume Number 40
Issue Number 4
Page Count 2
Starting Page 477
Ending Page 478


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Source: ACM Digital Library