Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment
Journal of the ACM (JACM)
Priority Inheritance Protocols: An Approach to Real-Time Synchronization
IEEE Transactions on Computers
IEEE Transactions on Parallel and Distributed Systems
A Real-Time Communication Method for Wormhole Switching Networks
ICPP '98 Proceedings of the 1998 International Conference on Parallel Processing
Guaranteed real-time communication in packet-switched networks with FCFS queuing
Computer Networks: The International Journal of Computer and Telecommunications Networking
A Network Calculus Model for SpaceWire Networks
RTCSA '11 Proceedings of the 2011 IEEE17th International Conference on Embedded and Real-Time Computing Systems and Applications - Volume 01
A Sensitivity Analysis of Two Worst-Case Delay Computation Methods for SpaceWire Networks
ECRTS '12 Proceedings of the 2012 24th Euromicro Conference on Real-Time Systems
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The SpaceWire network standard is used in spacecraft communications and has been selected for future ESA satellites. In order to guarantee the safety and reliability of on-board systems, the designers have to make sure that all critical timing constraints are satisfied. The SpaceWire network is a wormhole based network which makes its timing analysis significantly complex. Some methods for computing upper-bounds of end-to-end delays of certain wormhole network models have been developed. However, those models require some explicit assumptions and dedicated real-time mechanisms which cannot be supported by the current SpaceWire networks. Moreover, some work has proposed analysis approaches for SpaceWire networks assuming the Round-Robin arbitration scheme only. In this paper, we focus on the priority based arbitration scheme instead and we propose a worst-case response time analysis to evaluate the end-to-end delays of traffic transmissions in SpaceWire networks. The corresponding proofs to our analysis are presented along with a case study.