Middleware - is a specialized program which provides management services IPTV, provides authentication, statistics and provides a visual user interface, administrators, and programming interfaces for integration with existing OSS / BSS. The signal arrives at the station and closed in a closed form comes to STB. This is to protect the content. The function of the protection of content perform conditional access system (CAS). This component of the solution encrypts the TV signal to watch could only authorized users. CAS can provide authentication as an own methods and means of third-party systems, billing system or middleware.
As a means of authentication can be used as smart cards and software keys when the user needs to use a password. Decoding is carried out directly on the television set-top box or personal computer. Top boxes (IP Set Top Box) is a small computer with its operating system, web browser will bra and MPEG-decoder. That use of the Web browser and IP-link allows for interactive services. IP-network provide data transfer from the video server to the client terminal devices.
These may be local area networks (LAN) or digital telephone lines (DSL). The minimum conditions for the network operator - IPTV connection speed of at least 100 Mbit / s and the network bandwidth to the subscriber at least 4 Mbit / s. Existing broadband network operators are not always able to support dynamic next-generation services. Improving network to ADSL2 + standard will provide a significant competitive advantage in the market of interactive services. Once installed network with good bandwidth, you choose to avoid all the problems and possible "bottlenecks" in the future.
Networking Since the development of network technologies has made it possible to provide services to IPTV, the value of network architectures has increased significantly. Content Delivery requires broadband networks not only for the "last mile" (access networks), but also at the boundaries, and in the core network, and a home network end users. The structure of the IPTV network enables two-way communication that allows the subscriber to choose the services themselves. Optimal network service provider must provide the possibility of continuous service management to support a large number of client devices in the house, integrated with home networks and subscriber set-top boxes, as well as provide protection for IP-based networks.
Construction of the network can be simplified to reduce to the following scheme: the transmission of video content at the head-end (head-end), then the network IP, the next step - the access network and, finally, a home network subscriber. This superficial overview of the structure of the IPTV-networks. In fact, many IPTV subsystem architecture have their own characteristics, depending on the vendor, making the construction of each unique network. Providing services subscriber, the operator chooses the way of networking. Some operators prefer to provide their own services to subscribers to build at the head-end, to contract directly.
