The highest functionality of such systems is achieved owing to maximum population coverage, possibility of reallocation of on-call channels and channel dynamic between users, as well as presence of interactive communication with consumer and low cost of user terminal.
Satellite communication allows to combine successfully all these characteristics and deploy scale networks of content delivery as soon as possible. At the present moment such operativeness represents special interest for Mass media, because this market is in brisk growth stage.
Proposed solution is formed on the basis of the most popular standard DVB digital multimedia broadcasting. Use of DVB-S standard is fulfilled with terminals in Central Office (CO), other standard of DVB-RCS family is used backward.
Information meant for end users – video audio data, is concentrated in DVB packet which is formed at Central Office, in what connection the resource of this digital flow is distributed between different users in accordance with QoS established service level. This leads to efficient combination of real-time traffic (video, voice) and traffic uncritical to delivery speed.
Video and audio programs are broadcasted in digital form with the help of MPEG compression. Data communication and telephony are fulfilled by IP protocol. Network terminals receive DVB-S channel transmitted from Central Office with direct-link feedback. Special satellite resource with Multiple access, frequency and time-distributed (MF-TDMA), is used for contact of terminals with Central Office. Dynamic resource allocation between network stations is performed by Central Office on the basis of QoS service levels and priorities.
The direct-link feedback of terminals with Central Office provides users not only with wide range of services, but also with functions of authorized access to delivered resources, including tariffication in real time and according to use fact.
Terminals can be installed at head-end station of local provider in access network (cable network, ADSL, radio access) or directly in the territory of user. Concentration of all functions in rights control of access to multimedia resources, authorization and tariffication, allows to whittle down operating costs of operators and exclude unauthorized access, delayed payment of services and copyright violation.
Isatel company develops and implements a wide range of projects for state, corporate and private users. We offer prepared projects, including for vertical market sectors, where satellite communication technologies are more efficient and reliable mean of client tasks solution, as well as fulfillment of specific project components.
Isatel carries out health check and economic audit of project at the initial stage with the view of solution proposal for customer complying with his requirements to the maximum.All subsequent stages of project implementation and its putting into operation are fulfilled entirely at the cost of own technical and human resources, as well as with Isatel partners recruitment.