Aggressive congestion control mechanism for space systems

摘要

The concept of a space system of systems (SoS) is becoming a key consideration in space communication, navigation, and Earth observation. The space SoS is defined as a network of assets on the Earth, in orbit around the Earth, in orbit around solar system bodies and on the surface of solar system bodies that is interconnected and/or interoperated to perform a mission, and/or provide services that cannot be performed by monolithic space systems alone. However, current space information systems are basically operated in a point-to-point pattern between the control center and the spacecrafts, which are only adequate for the individual space missions rather than collaborative missions. In other words, the ground network, space network, and the deep-space network evolve independently and focus on their individual communication regimes. To address these issues, the National Aeronautics and Space Administration (NASA) has developed an integrated space system that integrates the Internet protocols, routers, and interfaces into space networks [3], [4]. The space system, which is also called space Internet, enables large quantities of collaborative operations of those networks. Therefore, the integrated space Internet is essentially an SoS.