Title :
Experience with a low power wireless mobile computing platform
Author :
Raghunathan, Vijay ; Pering, Trevor ; Want, Roy ; Nguyen, Alex ; Jensen, Peter
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
A detailed power analysis of a multi-radio mobile platform highlights the complex tradeoffs between the computation, storage, and communication subsystems. The particular mobile device, which does not include an LCD or other on-board display, can be used as a source for audio or video media files or a source/sink for secure data transfers. A version of the device has been augmented with fine-grained power monitoring capability and used to obtain detailed measurements of power dissipation in the various subsystems. Analysis of these measurements sheds light on the power consumption characteristics of different applications, thereby providing hints to system designers about potential areas for optimization. Specifically, this work contrasts the power efficiency of the various wireless technologies supported by the system.
Keywords :
low-power electronics; mobile computing; mobile handsets; multimedia computing; optimisation; power measurement; application power consumption characteristics; audio media files source; communication subsystems; complex subsystems tradeoffs; computation subsystems; fine-grained power monitoring capability; low power wireless mobile computing platform; mobile device; multi-radio mobile platform; optimization; power analysis; power dissipation measurements; power efficiency; secure data transfers; storage subsystems; video media files source; wireless technologies; Area measurement; Auditory displays; Design optimization; Energy consumption; Liquid crystal displays; Mobile communication; Mobile computing; Monitoring; Power dissipation; Power measurement;
Conference_Titel :
Low Power Electronics and Design, 2004. ISLPED '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
1-58113-929-2
DOI :
10.1109/LPE.2004.1349367
