CONNECTION

In recent years large enterprises are in need of the creation of an extensive corporate networks of central offices with branches in the country. Nowadays we demand not only for stable data transmission but also for high-quality telephone services, video conferencing, Internet access. Terrestrial communications are absent in many parts of the world ,that is why it is important to solve these problems, and sometimes the only possible solution is to use satellite communications.

I FIXED-SATELLITE

Suncomsat offers clients the following solutions for building enterprise networks:

THE CORPORATE NETWORK WITH MOBILE STATIONS

Many clients put the tasks of building local corporate networks with mobile stations. Try to imagine the oil sector, which requires corporate network linking the central office with developed fields. The use of VSAT terminals with antennas of diameter 1.2 and 1.8 meter allows you to move quickly the station within the coverage area of the satellite used without conducting costly and sometimes long-term licensing procedure.

RESERVE CORPORATE NETWORK

It is very important for the organization of the corporate network to provide reliability. But even networking on terrestrial channels can not guarantee 100% reliability. A backup satellite network.is the best way to improve the reliability of the company.

Organization of corporate network backup allows you to backup not only the entire network, but also some of its directories. Reserve network resources can be as involved with the core network congestion. Since the overall network capacity can be allocated efficiently among the directions, the resource may be significantly smaller than the main resource. Thus the costs of operating the reserve network is usually low and can be significantly lower than the damage associated with the failure of the primary network.

 

ASSIGNING NETWORK

The only way to establish rapidly a fixed zone network connection with providing connection points in all urban areas is satellite channels. They are in compact size and low cost but you shouldn’t be worried ,because VSAT terminals described networks provide higher bandwidth and support different types of interfaces and signaling. Satellite terminal installed in a single day and provides a point of attachment zonal operator in a particular locality. The terminal can also be used to provide services for telephony and data services to the population and organizations. Moreover, even if there is a terrestrial channel to the connection point, satellite communications is the perfect solution for backing up the channel and perform “Requirements for construction of the public communication network.

  • Antennasof1,2..1,8 meters;
  • Central office capacity is above 70 Mbit/s (one carrying);
  • Terminal capacity is up to 9 Mbit/s, 1000 IP packets per second;
  • Maximum number of ports E1 (G-703) per one terminal device – 6 (then it is grown by cascade of terminal devices);
  • Quantity of voice trunks per one terminal device – 60 (then it is grown by cascade of terminal devices);
  • Integrated IP interface (Ethernet), optional analog telephone interfaces.

II ALLOCATED COMMUNICATION CHANNELS (SPN.SCPC)

Suncomsat company considers the following requirements into account during the organizing of trunk satellite channels (SCPC):

RELIABILITY REQUIREMENTS

-Ability to build redundancy schemes 1:1;

· At channel level – redundancy of transmitter-receiver;

· At network level – satellite modem redundancy /router standby;

· “Last miles” redundancy, dynamic switching to redundant “last mile” in extreme cases.

LOW PRICE OF SATELLITE FREQUENCY AND ENERGY RESOURCE WITHIN С-BAND AND KU-BAND RANGES

  • Ordering a satellite resource of frequencies and energy with the International Organization of Space Communications Intersputnik; · Detailed line energy calculation.

HIGH EFFEICIENCY OF FREQUENCY AND ENERGY RESOURSE USE

  • Use of equipment with applications;
  • · CnC mode;
  •    · Use of highly efficient modulation and coding methods (8-PSK, 16-QAM, LDPC&BCH);
  •           · Use of geostationary spacecraft with high energy characteristics.

WEAK DEPENDENCE ON WEATHER CONDITIONS

  • ACM mode – adaptive code modulation;
  • Channel speed can be changed dynamically depending on receive levels – the primary purpose is “to hold” the channel when weather conditions are deteriorated even by way of the temporary capacity reduction (FEC dynamic change)

СHANNEL CAPACITY SCALING IN THE CASE OF PEAK LOADING IN BUSY HOURS

  • burstable for TDM/MF-TDMA mode