Cost-effective hybrid RF/FSO backhaul solution for next generation wireless systems

Handle URI:
http://hdl.handle.net/10754/622529
Title:
Cost-effective hybrid RF/FSO backhaul solution for next generation wireless systems
Authors:
Dahrouj, Hayssam; Douik, Ahmed; Rayal, Frank; Al-Naffouri, Tareq Y.; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
The rapid pace of demand for mobile data services and the limited supply of capacity in the current wireless access networks infrastructure are leading network operators to increase the density of base station deployments to improve network performance. This densification, made possible by small-cell deployment, also brings a novel set of challenges, specifically related to the cost of ownership, in which backhaul is of primary concern. This article proposes a cost-effective hybrid RF/free-space optical (FSO) solution to combine the advantages of RF backhauls (low cost, NLOS applications) and FSO backhauls (high-rate, low latency). To first illustrate the cost advantages of the RF backhaul solution, the first part of this article presents a business case of NLOS wireless RF backhaul, which has a low cost of ownership as compared to other backhaul candidates. RF backhaul, however, is limited by latency problems. On the other side, an FSO solution, which offers better latency and higher data rate than RF backhauls, remains sensitive to weather and nature conditions (e.g., rain, fog). To combine RF and FSO advantages, the second part of this article proposes a lowcost hybrid RF/FSO solution, wherein base stations are connected to each other using either optical fiber or hybrid RF/FSO links. This part addresses the problem of minimizing the cost of backhaul planning under reliability, connectivity, and data rate constraints, and proposes choosing the appropriate cost-effective backhaul connection between BSs (i.e., either OF or hybrid RF/FSO) using graph theory techniques.
KAUST Department:
King Abdullah University of Science and Technology, Saudi Arabia
Citation:
Dahrouj H, Douik A, Rayal F, Al-Naffouri TY, Alouini M-S (2015) Cost-effective hybrid RF/FSO backhaul solution for next generation wireless systems. IEEE Wireless Communications 22: 98–104. Available: http://dx.doi.org/10.1109/MWC.2015.7306543.
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Wireless Communications
Issue Date:
28-Oct-2015
DOI:
10.1109/MWC.2015.7306543
Type:
Article
ISSN:
1536-1284
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorDahrouj, Hayssamen
dc.contributor.authorDouik, Ahmeden
dc.contributor.authorRayal, Franken
dc.contributor.authorAl-Naffouri, Tareq Y.en
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2017-01-02T09:55:28Z-
dc.date.available2017-01-02T09:55:28Z-
dc.date.issued2015-10-28en
dc.identifier.citationDahrouj H, Douik A, Rayal F, Al-Naffouri TY, Alouini M-S (2015) Cost-effective hybrid RF/FSO backhaul solution for next generation wireless systems. IEEE Wireless Communications 22: 98–104. Available: http://dx.doi.org/10.1109/MWC.2015.7306543.en
dc.identifier.issn1536-1284en
dc.identifier.doi10.1109/MWC.2015.7306543en
dc.identifier.urihttp://hdl.handle.net/10754/622529-
dc.description.abstractThe rapid pace of demand for mobile data services and the limited supply of capacity in the current wireless access networks infrastructure are leading network operators to increase the density of base station deployments to improve network performance. This densification, made possible by small-cell deployment, also brings a novel set of challenges, specifically related to the cost of ownership, in which backhaul is of primary concern. This article proposes a cost-effective hybrid RF/free-space optical (FSO) solution to combine the advantages of RF backhauls (low cost, NLOS applications) and FSO backhauls (high-rate, low latency). To first illustrate the cost advantages of the RF backhaul solution, the first part of this article presents a business case of NLOS wireless RF backhaul, which has a low cost of ownership as compared to other backhaul candidates. RF backhaul, however, is limited by latency problems. On the other side, an FSO solution, which offers better latency and higher data rate than RF backhauls, remains sensitive to weather and nature conditions (e.g., rain, fog). To combine RF and FSO advantages, the second part of this article proposes a lowcost hybrid RF/FSO solution, wherein base stations are connected to each other using either optical fiber or hybrid RF/FSO links. This part addresses the problem of minimizing the cost of backhaul planning under reliability, connectivity, and data rate constraints, and proposes choosing the appropriate cost-effective backhaul connection between BSs (i.e., either OF or hybrid RF/FSO) using graph theory techniques.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectBusinessen
dc.subjectNonlinear opticsen
dc.subjectOptical fibersen
dc.subjectPlanningen
dc.subjectRadio frequencyen
dc.subjectReliabilityen
dc.subjectWireless communicationen
dc.titleCost-effective hybrid RF/FSO backhaul solution for next generation wireless systemsen
dc.typeArticleen
dc.contributor.departmentKing Abdullah University of Science and Technology, Saudi Arabiaen
dc.identifier.journalIEEE Wireless Communicationsen
dc.contributor.institutionEffat University, Saudi Arabiaen
dc.contributor.institutionCalifornia Institute of Technology, United Statesen
dc.contributor.institutionXona Partners, United Statesen
dc.contributor.institutionKing Fahd University of Petroleum and Minerals, Saudi Arabiaen
kaust.authorAl-Naffouri, Tareq Y.en
kaust.authorAlouini, Mohamed-Slimen
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