Analysis of Controlled Packet Departure to Support Ethernet Fronthaul Synchronization via PTP

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dc.contributor.author Freire, Igor
dc.contributor.author Sousa, Ilan
dc.contributor.author Bemerguy, Pedro
dc.contributor.author Klautau, Aldebaro
dc.contributor.author Almeida, Igor
dc.contributor.author Lu, Chenguang
dc.contributor.author Berg, Miguel
dc.date.accessioned 2019-04-08T10:33:32Z
dc.date.available 2019-04-08T10:33:32Z
dc.date.issued 2018
dc.identifier.bibliographicCitation Freire, I., Sousa, I., Bemerguy, P., Klautau, A., Almeida, I., Lu, C. y Berg, M. (2018). Analysis of Controlled Packet Departure to Support Ethernet Fronthaul Synchronization via PTP. In: 2018 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS), Geneva, Switzerland, pp. 1-6.
dc.identifier.isbn 978-1-5386-4263-4 (Electronic)
dc.identifier.isbn 978-1-5386-4262-7 (USB)
dc.identifier.isbn 978-1-5386-4264-1 (PoD)
dc.identifier.issn 1949-0313
dc.identifier.uri http://hdl.handle.net/10016/28271
dc.description.abstract The synchronization accuracy achieved via the IEEE 1588 Precision Time Protocol (PTP) in packet-based fronthaul networks is substantially impaired by packet delay variation (PDV). Nevertheless, in the particular case of deployment over tree topologies, it is known that PDV can be avoided by controlling the departure of PTP packets such that they experience close to constant delays over the fronthaul. This paper analyzes controlled PTP departure under constraints that are peculiar to a fronthaul scenario of interest and considering that radio traffic itself behaves as background traffic relative to PTP. Since the method involves buffering of radio traffic prior to controlled PTP transmissions, its impact on buffer sizes at the baseband and radio units, and the corresponding increase in fronthaul latency are also analyzed. In the end, results collected through a self-developed FPGA-based testbed are presented.
dc.description.sponsorship This work was supported in part by the Innovation Center, Ericsson Telecomunicac¸ ˜oes S.A., Brazil, CNPq/Capes, Brazil, and by the European Union through the H2020 collaborative Europe/Taiwan research project 5G-CORAL (grant agreement no. 761586).
dc.format.extent 7
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher IEEE
dc.rights © 2018 IEEE
dc.subject.other PTP
dc.subject.other IEEE 1588
dc.subject.other Fronthaul
dc.subject.other CPRI
dc.subject.other Ethernet
dc.title Analysis of Controlled Packet Departure to Support Ethernet Fronthaul Synchronization via PTP
dc.type bookPart
dc.type conferenceObject
dc.subject.eciencia Telecomunicaciones
dc.rights.accessRights openAccess
dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/761586
dc.type.version acceptedVersion
dc.relation.eventdate 30 September - 5 October 2018
dc.relation.eventplace Geneva, Switzerland
dc.relation.eventtitle 2018 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS)
dc.relation.eventtype proceeding
dc.identifier.publicationfirstpage 1
dc.identifier.publicationlastpage 6
dc.contributor.funder European Commission
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