|
As transmission mode satellite communication as fiber-optic coverage is more and more extensive, satellite communications because relative to optical fiber communication cost is higher, gradually declined. In satellite communications seems to face elimination of the fate of a new type of satellite communications satellite communication VSAT appeared, this technique by original usually point-to-point transmission technologies becomes a bit more access to technology that makes full use of satellite communications radio characteristic advantage; Combined with IP technology and the latest VSAT technology can achieve including voice, data, video, integrated business communication, make the satellite communication technology to find new development direction.As VSAT technology advances, growing awareness by satellite telecom operators VSAT integrated access communication is of great significance, Based on the characteristics of VSAT, according to the different VSAT system structure and performance are analyzed and compared, and based on the potential user group carries on the investigation and study to design the selected for operators large-scaled way of VSAT network, According to operation VSAT network users demand characteristics of various types, design selected facilitate supports multiple business types of based on IP protocol VSAT network, According to the Chinese unicom satellite communication relay the advantage of rich resources, the design gives three master station can be different backup high reliability VSAT network, In order to further improve VSAT network attraction and practicability, still designed a VSAT network of some additional networks, such as the VSAT network in the soft exchange system design to join NGN, apply for a fixed number of resources, and through the voice gateway access public telephone local networks, make VSAT inside network VOIP telephone with public sites telephone users can directly mutual dial, In addition, this paper also designed the Internet access, secure encrypted additional features such as available to further improve VSAT network to competitive advantage; This paper also has designed various VSAT network service application implementation mode, in order to attract more national network users and transnational network users. After full consideration and finally formed three host interoperability of design for broadband a Shared stellate VSAT network of great business application competitive advantage, and is of high reference value and practical significance. Regional VSAT system is not perfected the operation network, Economy is the trend of global integration, many Chinese enterprises are in internationl factory, exploration, oil and mining of mineral and assist the foreign companies in infrastructure construction, etc., and ocean carriers, long-range aircraft can become VSAT users, therefore, gradually establish worldwide covered VSAT network is the trend of The Times, regional VSAT system service scope will become the bottleneck of development, eventually will appear global coverage of VSAT network.
|