Abstract

Internet streaming applications are becoming increasingly popular on
mobile devices. However, receiving streaming services on mobile
devices is often constrained by their limited battery power
supply. Various techniques have been proposed to save battery power
consumption on mobile devices, mainly focusing on how much data to
transmit and how to transmit.

In this study, we conduct an experiment-based study with 11 Internet
streaming applications using different streaming protocols.  Our goal
is to empirically investigate the battery power consumption on the
wireless network interface for receiving streaming data via different
approaches. Through measurement and analysis, we find that (1) the
Chunk-based streaming is widely used in practice and it is most
power-efficient because the traffic shaping technique is adopted to
utilize PSM on mobile devices to save battery power consumption;
however, it may cause quality degradation from time to time; (2)
reducing streaming data transmission (by switching to a lower
streaming quality) can marginally help save battery power consumption
in RTSP, Pseudo streaming, and Chunk-based streaming applications; but
it is effective for P2P streaming applications; (3) P2P streaming to
mobile devices is not power-efficient because of the additional
transmission of control traffic and uploading traffic; and reducing
upload alone does not help for battery power saving.


Speark Bio

Yao Liu is a Ph.D. student of Computer Science Department at George
Mason University.