| In the field of radio and television, digital, network and integration has become three major development trend, "11th Five-Year Plan" period is also China's radio and television broadcasting to digital and integration of the full transition to achieve leapfrog development stage, whether Radio network or with the integration of the Internet can be a closed relationship.The field of traditional radio and television enterprises in the process, in digital broadcasting has a relatively rapid development, such as Digital Broadcasting, the network television production, programming code and encryption to quickly develop and gradually mature. In the network the development of new technologies and applications are relatively slow, this is due to the lack of traditional radio and television network business areas and the accumulation of other network technology itself is rapidly evolving. Internet companies launched P2P products because of the features on the radio and television can not completely meet the needs of application areas, making their products can hardly be directly adopted, the current radio and television network technology as an important area of development bottleneck.The main contributions in this paper are as follows:(1) According to specific users provide high-quality services P2P content distribution needs, the overall framework of participation in the design and optimization.(2) At present there are a lot against NAT affected P2P network transmission applications characteristics, realized using UDP protocol NAT traversal, and the application layer on the UDP protocol package, the UDP protocol to achieve reliable transmission.(3) Participate in P2P content distribution system which is serviced in community-based projects video applications.(4) According to the current technology in the broadcasting industry, network television trend of the rapid development of technology, an improved application layer multicast scheme for P2P streaming media broadcast systems. |
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