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Transport Abstraction Models for an SDN-Controlled Centralized RAN
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab).ORCID iD: 0000-0002-5318-2050
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab).ORCID iD: 0000-0001-6704-6554
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab).ORCID iD: 0000-0002-5636-9910
2015 (English)In: IEEE Communications Letters, ISSN 1089-7798, E-ISSN 1558-2558, Vol. 19, no 8, 1406-1409 p.Article in journal (Refereed) Published
Abstract [en]

In a centralized radio access network (C-RAN) scenario the joint coordination of radio (e.g., remote radio units, baseband units) and transport (e.g., optical cross connects) resources can be achieved via software defined networking (SDN) control plane, where a global orchestrator harmonizes the use of resources across all network segments. The more accurate the information about each domain (i.e., the abstraction of wireless and transport resources) is, the better will be the outcome of the orchestration work. This letter presents three transport resources abstraction models along with their corresponding orchestration policies. Their performance are compared showing that there is not a single best abstraction strategy that fits all the cases. If radio resources are scarce compared to transport resources, complex transport abstraction models are not needed. Contrariwise, if enough radio resources are widely available, more detailed abstraction models are required for achieving good network performance, but at the expense of an increased implementation complexity.

Place, publisher, year, edition, pages
2015. Vol. 19, no 8, 1406-1409 p.
Keyword [en]
Software defined networking (SDN), centralized RAN (C-RAN), transport abstraction, fronthaul, backhaul, wavelength division multiplexing (WDM)
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-173276DOI: 10.1109/LCOMM.2015.2446480ISI: 000359539400033Scopus ID: 2-s2.0-84939453146OAI: oai:DiVA.org:kth-173276DiVA: diva2:852623
Note

QC 20150909

Available from: 2015-09-09 Created: 2015-09-09 Last updated: 2017-08-15Bibliographically approved

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Fiorani, MatteoWosinska, LenaMonti, Paolo

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