1st Annual Conference on Broadband Networks

Research Article

PRISM: an error-resilient video coding paradigm for wireless networks

  • @INPROCEEDINGS{10.1109/BROADNETS.2004.69,
        author={Abhik Majumdar and Kannan Ramchandran},
        title={PRISM: an error-resilient video coding paradigm for wireless networks},
        proceedings={1st Annual Conference on Broadband Networks},
        publisher={IEEE},
        proceedings_a={BROADNETS},
        year={2004},
        month={12},
        keywords={},
        doi={10.1109/BROADNETS.2004.69}
    }
    
  • Abhik Majumdar
    Kannan Ramchandran
    Year: 2004
    PRISM: an error-resilient video coding paradigm for wireless networks
    BROADNETS
    IEEE
    DOI: 10.1109/BROADNETS.2004.69
Abhik Majumdar1,*, Kannan Ramchandran1
  • 1: EECS Department, University of California Berkeley
*Contact email: abhik@eecs.berkeley.edu

Abstract

We describe PRISM (power-efficient, robust, high-compression, syndrome-based multimedia coding), an error-resilient video-coding paradigm built on the principles of distributed source coding from multi-user information theory. PRISM represents a radical departure from the current state-of-the-art video coding architectures, like MPEG, that are based on a motion-compensated prediction framework. These are hampered by: (i) a rigid computational complexity partition between encoder (heavy) and decoder (light); and (U) high fragility to drift between encoder and decoder in the face of prediction mismatch due to channel loss. In contrast, PRISM's architectural goals are: (i) to have a channel-adaptive distribution of computational complexity between encoder and decoder; and (ii) to have built-in robustness to drift between encoder and decoder due to wireless channel loss. These features make PRISM ideally suited for low-latency multimedia transmission over wireless networks, particularly for uplink-rich applications.