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Conference Papers Year : 2016

Softcast with per-carrier power-constrained channels


This paper considers the Softcast joint source-channel video coding scheme for data transmission over parallel channels with different power constraints and noise characteristics, typical in DSL or PLT channels. To minimize the mean square error at receiver, an optimal precoding matrix design problem has to be solved, which requires the solution of an inverse eigenvalue problem. Such solution is taken from the MIMO channel precoder design literature. Alternative sub-optimal precoding matrices are also proposed and analyzed, showing the efficiency of the optimal precoding matrix within Softcast, which provides gains increasing with the encoded video quality.
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Dates and versions

hal-01424906 , version 1 (06-01-2017)



Shuo Zheng, Marc Antonini, Marco Cagnazzo, Lorenzo Guerrieri, Michel Kieffer, et al.. Softcast with per-carrier power-constrained channels. IEEE International conference on Image Processing, IEEE, Sep 2016, Phoenix, AZ, United States. pp.2122-2126, ⟨10.1109/ICIP.2016.7532733⟩. ⟨hal-01424906⟩
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