Method of scheduling channel resources for onboard SpaceWire networks with TDMA-Reference-Cited by-同舟云学术

Method of scheduling channel resources for onboard SpaceWire networks with TDMA

Published:2019-12-01 Issue:4 Volume:29 Page:44-53
ISSN:2541-870X
Container-title:Radio industry (Russia)
language:
Short-container-title:Radiopromyshlennost

Author:

Korobkov I. L.¹^ORCID

Affiliation:

1. Saint-Petersburg State University of Aerospace Instrumentation

Abstract

The article presents a new method for scheduling channel resources in SpaceWire onboard networks with support for TDMA technology. The network features based on the SpaceWire network standard and the STP-ISS transport protocol, which provides TDMA technology in the form of the «Scheduling» mechanism, were considered. This mechanism is used in networks with the goal of providing determinism, resolving conflicts and blocks when two or more devices are simultaneously trying to transmit data, occupying a limited channel resource. A comparative analysis of existing methods and algorithms for scheduling channel resources to design a schedule table was conducted. A new method of scheduling channel resources in SpaceWire onboard networks was presented and substantiated. A performance evaluation was carried out using the parameters significant for the space industry. It demonstrates the effectiveness of the developed method.

Publisher

CRI Electronics

Subject

General Earth and Planetary Sciences,General Environmental Science

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