IPTV Network Technology Research

IPTV service is a business platform based on broadband telecommunications network for set-top boxes or digital terminal with the capacity of audio and video coding。To provide users with a variety of interactive multimedia services of a business, through the streaming media content of sp and value-added application services。IPTV service mainly broadcasting, on-demand, time-lapse television, information services, video communication, interactive games, information services, music, karaoke ok / mtv, distance education, interactive advertising, personal custom video, internet browsing. It is a new form of television transmission, a broadband video applications to fill the gaps. Users can freely on demand, low-cost, once the scale, will bring great benefits. IPTV is a new technology evolved the industry, it will profoundly change people's entertainment and lifestyle, and indicates that a huge new market.In our country, IPTV business has also achieved considerable development. Especially in shanghai, because shanghai telecom and smg's full cooperation, as at the end of 2007, shanghai's IPTV number of users has exceeded 300,000, showing a good market potential for development.However, new business, the introduction of new technologies, but also to the system design, networks and so on has brought greater flexibility and complexity. And IPTV as a new business, the industry is still not mature network design specifications, resulting in a considerable number of network problems.This paper is a study in shanghai, zhejiang, jiangxi, guangxi, hainan province's IPTV system construction experience, for how to carry out IPTV systems in different network environment on the network. This paper from the zuwangfangshi IPTV, the business and achieve, codec standards, system security, user access, network performance and network precedents, the network technology for the study. Hope that through this paper, to build the network for IPTV to provide certain information.