loading...
Probability Based Power Aware Error Resilient Coding
Columbus, Ohio, USA June 06-June 10
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ICDCSW.2005.113First International Workshop on Servi ...
 This Article 
 
PDF
HTML
 
 Share 
   
 Bibliographic References 
   
 Add to: 
 
Digg
Furl
Spurl
Blink
Simpy
Google
Del.icio.us
Y!MyWeb
 
 Search 
   
Minyoung Kim, University of California at Irvine
Hyunok Oh, University of California at Irvine
Nikil Dutt, University of California at Irvine
Alex Nicolau, University of California at Irvine
Nalini Venkatasubramanian, University of California at Irvine
Error resilient encoding in video communication is becoming increasingly important due to data transmission over unreliable channels. In this paper, we propose a new power-aware error resilient coding scheme based on network error probability and user expectation in video communication using mobile handheld devices. By considering both image content and network conditions, we can achieve a fast recoverable and energy-efficient error resilient coding scheme. More importantly, our approach allows system designers to evaluate various operating points in terms of error resilient level and energy consumption over a wide range of system operating conditions. We have implemented our scheme on an H.263 video codec algorithm, compared it with the previous AIR, GOP and PGOP coding schemes, and measured energy consumption and video quality on the IPAQ and Zaurus PDAs. Our experimental results show that our approach reduces energy consumption by 34%, 24% and 17% compared with AIR, GOP and PGOP schemes respectively, while incurring only a small fluctuation in the compressed frame size. In addition, our experimental results prove that our approach allows faster error recovery than the previous AIR, GOP and PGOP approaches. We believe our error resilient coding scheme is therefore eminently applicable for video communication on energy-constrained wireless mobile handheld devices.
Citation:
Minyoung Kim, Hyunok Oh, Nikil Dutt, Alex Nicolau, Nalini Venkatasubramanian, "Probability Based Power Aware Error Resilient Coding," icdcsw, vol. 3, pp.307-313, First International Workshop on Services and Infrastructure for the Ubiquitous and Mobile Internet (SIUMI) (ICDCSW'05), 2005
Usage of this product signifies your acceptance of the Terms of Use.


Suggestions