Department of Electrical Engineering and Computer Science
CSI(Cyber-Physical Systems Integration) Lab
1. Journal Articles
TOWARD ENERGY-EFFICIENT ERROR CONTROL IN 3G BROADCAST VIDEO
- Title
- TOWARD ENERGY-EFFICIENT ERROR CONTROL IN 3G BROADCAST VIDEO
- Author(s)
- Kang, Kyungtae ; Ryu, Junhee ; Choi, Sunghyun ; Park, Kyung-Joon ; Hur, Junbeom
- DGIST Authors
- Park, Kyung-Joon
- Issued Date
- 2012-12
- Type
- Article
- Article Type
- Article
- Subject
- Battery Life ; Broadcast Video ; Controlled Reduction ; Energy Efficient ; Energy Use ; Energy Utilization ; Error Control ; Mobile Devices ; Quality Control ; Reed-Solomon Codes ; Save Energy ; Small Screens ; Video Broadcasts ; Video Quality ; Visual Perception
- ISSN
- 1536-1284
- Abstract
- Energy use is a key issue in battery-operated mobile devices. In order to extend battery life, mobiles showing video often allow a controlled drop in quality, which is tolerable when the shortcomings of a small screen are combined with the imperfections of visual perception. Both energy consumption and video quality are affected by the Reed-Solomon codes and interleaving levels used in 3G video broadcast services. We explore the effect of these elements of MAC-layer error control, and show how they can be manipulated to save energy while maintaining acceptable video quality through a controlled reduction in the number of parity symbols in the Reed-Solomon code and the level of interleaving. © 2002-2012 IEEE.
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Related Researcher
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Park, Kyung-Joon
- Research Interests Cyber-Physical Systems; Robot Operating System (ROS); Smart Manufacturing
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