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http://dx.doi.org/10.6109/jkiice.2015.19.9.2022

Analysis of transmission delay of timecode over SpaceWire network using OMNeT++  

Ryu, Sang-Moon (Department of Information and Control Engineering, Kunsan National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.19, no.9, 2015 , pp. 2022-2028 More about this Journal
Abstract
SpaceWire is a standard for high-speed links and networks between spacecraft components, which was invented for better, cheaper and faster on-board data handling in spacecraft. The standard defines timecode and its distribution which can be used for time synchronization among the nodes in a SpaceWire network. A timecode output from the time master which provides standard time over a SpaceWire network travels through links and routers to reach every nodes. While traveling, a timecode suffers from transmission delay and jitter which cause some difference in time synchronization among nodes. In this work, a simulator was developed using OMNeT++ to simulate the operation of a SpaceWire network and some analyses were performed on the transmission delay and jitter accompanied with a transmission of a timecode. The result will be used in the near future for the research of a precise time synchronization technique over a SpaceWire network.
Keywords
SpaceWire; timecode; time synchronization; transmission delay; OMNeT++;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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