Research And Application Of CATV Network Reconstruction Based On C-DOCSIS

China's broadcast television network covers a large number of users and a wide range of area.However,due to its long construction time and simplex maintenance method,the following problems exist in radio and television networks at present:(1)the bidirectional network operation is unstable.(2)network bandwidth is asymmetric and large delay.(3)the problem of relatively insufficient bandwidth,seriously affects the user experience.Based on the background above,the main contributions of this thesis are as follows:(1)it generally analysis the network reconstruction technology of EPON+EOC and EPON+CDOCSIS,and proposes bidirectional reconstruction solution for broadcast television network,which based on C-DOCSIS;(2)combined with work experience in bidirectional network reconstruction,this thesis conducts in-depth discussion and research of C-DOCSIS;(3)Based on C-DOCSIS technical standards,and combined with CWDM,RFoG and IPv6 related technology,this thesis introduces the implementation of Hangzhou's city broadcast television network,At the end of this article,there is a summary and the outlook on the trend of C-DOCSIS technology.Through the construction and application of Hangzhou's bidirectional network reconstruction project,which improves Wasu's broadcast television network structure in Hangzhou,and extends the frequency resources and bandwidth,and enables Wasu to develop its new business and to improve the quality of its services at the same time.The reconstructed HFC network achieves development and convergence of internet,telecommunication network and broadcast television network services,and lays the foundation for the government's digital,networked,intelligent city management and services within infrastructure.The public can experience the integrated,colorful informationalized life,enjoy the bandwidth and higher quality video and internet services,which successfully completed the expected goal of network reform.