Towards energy-efficient streaming system for mobile hotspots

Authors:
Ming-Hung Chen;Chun-Yu Yang;Chun-Yun Chang;Ming-Yuan Hsu;Ke-Han Lee;Cheng-Fu Chou
Affiliations:
National Taiwan University, Taipei City, Taiwan Roc;National Taiwan University, Taipei City, Taiwan Roc;National Taiwan University, Taipei City, Taiwan Roc;National Taiwan University, Taipei City, Taiwan Roc;National Taiwan University, Taipei City, Taiwan Roc;National Taiwan University, Taipei City, Taiwan Roc
Venue:
Proceedings of the ACM SIGCOMM 2011 conference
Year:
2011

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Structured network coding and cooperative wireless ad-hoc peer-to-peer repair for WWAN video broadcast

IEEE Transactions on Multimedia

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Abstract

Modern mobile devices have become an important part of our daily life but the performance of multimedia applications still suffers from the constrained energy supply and communication bandwidth of the mobile devices. In this work, we develop an energy-efficient streaming system for mobile hotspots to achieve better Quality-of-Experience. Our main idea is (a) to avoid redundant 3G transmissions as well as reduce the usage of 3G links for those low residual-energy users, and (b) to enable nearby mobile users cooperatively to share the downloaded data via short-range interfaces. The experiment results shows our scheme can improve the system lifetime by 27%, and provide better throughput as well as lower loss rate than conversional 3G systems do.