Systematic Raptor Codes with UEP Property for Image Media Transmission
In order to improve unequal error protection (UEP) for compressed images, a novel rateless transmitting scheme is proposed in this paper. Based on 3GPP Raptor codes, this scheme can accurately match the image with different priority to ensure the efficiency and reliability. These Raptor codes have the linear complexity of encoding and decoding. In addition, a new framework called Short Interweaving Systematic Raptor (SISR) codes is proposed. Based on Markov process, the theoretical analysis of degree distribution design is given. Simulation results show that, compared to the traditional Raptor code, SISR can prominently improve the PSNR to obtain better image quality with different packet loss rate.
Keywords3GPP-systematic Raptor code Unequal error protection Image media Peak signal-to-noise ratio
This work was supported in part by the National Natural Sciences Foundation of China under Grant 61701136, Grant 61501140, Grant 61771158 and Grant 61525103, and China Postdoctoral Science Foundation Grant 2018M630357, and Shenzhen Basic Research Program under Grant JCYJ20170811154233370, Grant JCYJ20170811154309920 and Grant ZDSYS201707280903305.
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