Description of the communication network of the ITV
Metropoliten connectivity

ITV denotes a VSAT network product to be operated via geostationary satellites with transparent transponders. Based on SkyWAN® products of German company - ND SatCom, ITV network supports multimedia services (voice, video, LAN interconnection) and offers the users the main benefit of VSAT networks which is the direct access to the satellites' widespread coverage via small antennas installed at the users' premises.

MF-TDMA satellite channel access is used to provide fully meshed connectivity between all network nodes and to efficiently exploit the satellite channel capacity. The integration of real time and non real time services is emphasized in the SkyWAN® approach which is based on packet switching technology. The two generic interfaces are Ethernet (LAN) and Frame Relay, where the latter provides real time services in addition to non real time services. Because of its ability to use satellite transmission capacity in the order of several Mbit/s an SkyWAN® network is well suited for corporate networks serving main locations of customers with intensive communication demands. The network management is based on SNMP supporting the integration of SkyWAN® into existing network environments and allowing additional services such as scheduled allocation of bandwidth e.g. for video conferencing.

Service Area NSS 703 57 deg East

Service Area Hellas2 at 49 deg East

Service area AM22 Satellite

 

 

ITV has an independent communication infrastructure on the territory of Bulgaria providing high quality communications and services. Based on many metropoliten satellite stations, the satellite backbone covers all the territory of the country. Network is quite flexible and may be used as a main connections or backup of exisitng communication infrastructure.





Communication infrastructure is based on the DAMA principal and MF-TDMA satellite communication technologies integrated with terrestrial and wireless communication systems. Satellite communication network of ITV proposes all kind of network services like pure IP transfer, VoIP, IP telephony, video conferencing on the DVB platform, MPLS routing, Internet delivery, International gateways for data, telephony and private networking. Value added services are based on: web hosting servers, collocations e-mail hosting, e-mail gateways, e-government and e-business applications. Different media applications and new services for Bulgaria like mobile SNG - serving the Bulgarian media are also proposed.
ITV satellite network may be used as main communication infrastructure and also as a backup communication infrastructure serving already existing corporate networks and connectivity with high requirements for network reliability.

ITV network is fully adaptive and may be integrated to any existing customers’s communication devices or existing communication infrastructure. Satellite communications permits to establish connectivity at random point on the territory of Bulgaria. This is very important for the regions where the conventional communications are not well developed.




Satellite network backbone is places in all regional cities in the country. Aggregating part is a hybrid solution and is designed to fulfill all the customer’s needs and possibilities. Customers may be connected to the backbone with local leased lines, MAN connectivity, wireless WLL, ISDN, or directly with a small VSAT station.