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dc.contributorDellandrea, M. Brice
dc.contributorCamps Carmona, Adriano José
dc.contributor.authorJané Abad, Jaume
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.date.accessioned2019-01-17T14:53:35Z
dc.date.issued2018-10-30
dc.identifier.urihttp://hdl.handle.net/2117/127143
dc.descriptionThe tool MOST (Modelling of SpaceWire Network) is an open source tool for satellite networks simulations developed by Thales Alenia Space based on the simulator NS3. The goal of this work is to extend the functionalities with the programming of a new module for the SpaceFiber standard.
dc.description.abstractThis work presents the implementation of the SpaceFibre protocol for the network simulator MOST NS-3. On board data networks interconnect satellite's modules with mixed requirements on time of deliver delay and jitter. For example, the same link on a network can be shared to retrieve payload telemetry and to receive satellite attitude sensors telemetry. While payload telemetry can usually wait and support some level of delay, attitude sensors telemetry must arrive within an strict window of time. Several protocols try to solve this problematic. One of them is SpaceFibre, an evolution of SpaceWire that introduces Quality of Service at data link layer by using virtual channels (VC). Virtual channels compete to access the link based on their priority, bandwidth reservation and scheduling. Despite the capabilities of SpaceFibre, with complex onboard satellite networks a question arises: are the jitter and delay requirements fulfilled? To answer that question a network simulator is needed. MOST on NS-3 is a network simulator developed by Thales Alenia Space that implements SpaceWire and related protocols. The outcome of this work is an implementation of the SpaceFibre protocol for MOST NS-3. The model implements all the procedures that introduces a delay in the transmission of a packet including lane initialization, the time that a packet frame waits in a buffer due to the multiplexing of several virtual channels in the same link, words precedence or frame recovery mechanisms. Several tests are included to validate that the implementation meets the requirements of the SpaceFibre protocol.
dc.language.isoeng
dc.publisherUniversitat Politècnica de Catalunya
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació
dc.subject.lcshSatellites
dc.subject.lcshOptical communications
dc.subject.otherSpaceFibre
dc.subject.otherSpaceWire
dc.subject.otherCommand and Data Handling
dc.subject.otherSatellite
dc.subject.otherNetwork
dc.subject.otherOnboard Data Network
dc.subject.otherNetwork Simulator
dc.subject.otherNS-3
dc.subject.otherQuality of Service
dc.subject.otherDelay
dc.subject.otherJitter
dc.titleModelling of SpaceFibre networks
dc.typeMaster thesis
dc.subject.lemacSatèl·lits
dc.subject.lemacComunicacions òptiques
dc.identifier.slugETSETB-230.136562
dc.rights.accessRestricted access - author's decision
dc.date.lift10000-01-01
dc.date.updated2018-11-06T06:51:54Z
dc.audience.educationlevelMàster
dc.audience.mediatorEscola Tècnica Superior d'Enginyeria de Telecomunicació de Barcelona
dc.audience.degreeMÀSTER UNIVERSITARI EN ENGINYERIA DE TELECOMUNICACIÓ (Pla 2013)
dc.contributor.covenanteeThales Alenia Space
dc.contributor.covenanteeInstitut Supérieur de l'Aéronautique et de l'Espace


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