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Cost-Effective Migration towards C-RAN with Optimal Fronthaul Design
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS.
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS.ORCID iD: 0000-0002-6614-5208
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS.ORCID iD: 0000-0003-4006-5848
2017 (English)In: 2017 IEEE International Conference on Communications, ICC 2017, IEEE conference proceedings, 2017, article id 7996772Conference paper, Published paper (Refereed)
Abstract [en]

Centralized Radio Access Network (C-RAN) hasbeen recently proposed to increase network capacity, reduceenergy consumption, and improve scalability. However, C-RANrequires an extensive modification to the current infrastructure,which results in a considerable deployment cost. In this paper,we conduct a techno-economic study to evaluate the migrationcost of C-RAN, and we propose a methodology for cost andenergy efficient C-RAN deployment. We exploit the conceptof total cost of ownership, defined as the sum of capital andoperational expenditures. We formulate a Digital Unit (DU) poolplacement optimization problem as Mixed Integer Linear Programming(MILP), which minimizes the total cost of ownership.We compare the total cost of ownership of C-RAN to that ofthe existing infrastructure, under different deployment scenariossuch as greenfield and brownfield deployment of fiber and DUpool, and different cell sizes. The results show that the opticalinfrastructure plays a determinant role in the migration cost ofC-RAN. If greenfield fiber is assumed, the migration cost cannotbe compensated in a reasonable amount of time. If brownfieldfiber is assumed, the migration cost is considerably reduced, anda more feasible C-RAN deployment is achieved.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2017. article id 7996772
Series
IEEE International Conference on Communications, ISSN 1550-3607
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-211448DOI: 10.1109/ICC.2017.7996772ISI: 000424872102132Scopus ID: 2-s2.0-85028312818ISBN: 9781467389990 (print)OAI: oai:DiVA.org:kth-211448DiVA, id: diva2:1129232
Conference
2017 IEEE International Conference on Communications, ICC 2017, Paris, France, 21 May 2017 through 25 May 2017
Note

QC 20170803

Available from: 2017-08-01 Created: 2017-08-01 Last updated: 2018-03-12Bibliographically approved

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CiteExportLink to record
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