文献类型： 会议论文

第一作者： S. Zheng

作者： S. Zheng ¹ ; M. Antonini ² ; M. Cagnazzo ³ ; L. Guerrieri ⁴ ; M. Kieffer ¹ ; I. Nemoianu ¹ ; R. Samy ⁵ ; B. Zhang ⁴ ;

作者机构： 1.L2S, CNRS-CentraleSupelec-Univ Paris-Sud

2.I3S, Univ. Nice-Sophia Antipolis, CNRS

3.LTCI, CNRS, Telecom ParisTech, Universite Paris-Saclay

4.STMicroelectronics S.r.l.

5.SAGEMCOM, R&T Direction

关键词： Joint source-channel coding;Softcast;Precoding matrices;PLT channels

会议名称： IEEE International Conference on Image Processing

主办单位：

页码： 2122-2126

摘要： 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 suboptimal 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.

分类号： TP391.41-53