Scheduling mechanisms for spacewire networks

Abstract

The paper describes two mechanisms which solve the problem of time multiplexing for SpaceWire networks. They are a transport-level scheduling mechanism, which is used in the STP-ISS protocol, and SpaceWire-DSUAI, that is a protocol prototype. The current paper presents an overview of these mechanisms and compares them. In addition, we provide a short analysis of time-division multiplexing in the communication protocols.

Keywords

• Scheduling
• STP-ISS rev.2
• SpaceWire-D
• SpaceWire networks
• Spacecraft