期刊名称：International Journal of Electronics and Computer Science Engineering
电子版ISSN：2277-1956
出版年度：2012
卷号：1
期号：2
页码：590-596
出版社：Buldanshahr : IJECSE
摘要：Nowadays, viewing video has become simplified using video transmission over a network. Using video streaming, Web user does not have to wait to download a file to play it. Instead, the media is sent in a continuous stream of data and is played as it arrives. When a video has to be multicast this streaming causes traffic at the intermediate nodes. Thus network coding is used to combine different information flows into a single stream. The algebraic mixing of different packets using random linear network coding increases the throughput and robustness of streaming services over wireless networks. Network coding scheme is used to provide users with various levels of quality and thus providing different levels of confidentiality. Using the algebraic structure of network coding, hierarchical fidelity levels, robustness against wireless packet loss and efficient security can be achieved. The encryption operations are limited to a critical set of network coding coefficients. These coefficients are then rearranged in the packet header and transmitted. The proposed system is analyzed in terms of security and the simulation results are provided. In this system the multi-layered encoded video file is sent to the receiver by multi-streaming. The receiver can see the decoded recombined original video.
关键词：Network coding; video streaming; layered encoding.
