Energy reduction techniques for multimedia applications with tolerance to deadline misses
Proceedings of the 40th annual Design Automation Conference
Quality-driven design by bitwidth optimization for video applications
ASP-DAC '03 Proceedings of the 2003 Asia and South Pacific Design Automation Conference
Motion adaptive error resilient encoding for MPEG-4
ICASSP '01 Proceedings of the Acoustics, Speech, and Signal Processing, 2001. on IEEE International Conference - Volume 03
xTune: online verifiable cross-layer adaptation for distributed real-time embedded systems
ACM SIGBED Review - Special issue on the RTSS forum on deeply embedded real-time computing
Constraint refinement for online verifiable cross-layer system adaptation
Proceedings of the conference on Design, automation and test in Europe
Mitigating the impact of hardware defects on multimedia applications: a cross-layer approach
MM '08 Proceedings of the 16th ACM international conference on Multimedia
On-the-fly coding for real-time applications
MM '09 Proceedings of the 17th ACM international conference on Multimedia
A probabilistic formal analysis approach to cross layer optimization in distributed embedded systems
FMOODS'07 Proceedings of the 9th IFIP WG 6.1 international conference on Formal methods for open object-based distributed systems
Combining formal verification with observed system execution behavior to tune system parameters
FORMATS'07 Proceedings of the 5th international conference on Formal modeling and analysis of timed systems
Ensuring security and availability through model-based cross-layer adaptation
UIC'11 Proceedings of the 8th international conference on Ubiquitous intelligence and computing
Error-Aware Algorithm/Architecture Coexploration for Video Over Wireless Applications
ACM Transactions on Embedded Computing Systems (TECS)
ACM Transactions on Embedded Computing Systems (TECS)
xTune: A formal methodology for cross-layer tuning of mobile embedded systems
ACM Transactions on Embedded Computing Systems (TECS)
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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.