Abstract:

The satellite network has being developed to today, its techniques have being developed maturely, international standards have being gradually developed, and markets also have being boomed. But the limitations in recent satellite networks, which are high-latency pipe structure, non-standard satellite IP function, lack of compatibility and expansibility, and so on, block the rapid development of them comparing with the ground Internet. Only when next generation satellite networks utilize mature IP technology to build IP satellite network and seamlessly connect with internet on the earth, we can break through the developmental bottleneck of satellite network and meet cheap and convenient service of the users. Based on summarizing limitations of the present satellite network, we have explored the necessity, structure and advantages of next generation satellite network, and have elaborated challenges and opportunities faced by next generation satellite network.

Key words: next generation satellite network, IP technology, challenge, opportunity