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Distributed video streaming using multiple description coding and unequal error protection

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3 Author(s)
Joohee Kim ; Center for Signal & Image Process., Georgia Inst. of Technol., Atlanta, GA, USA ; Mersereau, R.M. ; Altunbasak, Y.

This paper presents a distributed video streaming framework using unbalanced multiple description coding (MDC) and unequal error protection. In the proposed video streaming framework, two senders simultaneously stream complementary descriptions to a single receiver over different paths. To minimize the overall distortion and exploit the benefits of multipath transport when the characteristics of each path are different, an unbalanced MDC method for wavelet-based coders combined with a TCP-friendly rate allocation algorithm is proposed. The proposed rate allocation algorithm adjusts the transmission rates and the channel coding rates for all senders in a coordinated fashion to minimize the overall distortion. Simulation results show that the proposed unbalanced MDC combined with our rate allocation algorithm achieves about 1-6 dB higher peal signal-to-noise ratio compared to conventional balanced MDC when the available bandwidths along the two paths are different under time-varying network conditions.

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Image Processing, IEEE Transactions on  (Volume:14 ,  Issue: 7 )