Show simple item record

dc.contributor.authorJamali, V.
dc.contributor.authorMichalopoulos, D. S.
dc.contributor.authorUysal, Murat
dc.contributor.authorSchober, R.
dc.date.accessioned2016-07-29T05:25:59Z
dc.date.available2016-07-29T05:25:59Z
dc.date.issued2016-05
dc.identifier.issn1536-1276
dc.identifier.urihttp://hdl.handle.net/10679/4346
dc.identifier.urihttp://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=7386696
dc.descriptionDue to copyright restrictions, the access to the full text of this article is only available via subscription.
dc.description.abstractIn this paper, we consider a cascaded radio frequency (RF) and hybrid RF/free space optical (FSO) system where several mobile users transmit their data over an RF link to a decode-and-forward relay node (e.g., a small cell base station) and the relay forwards the information to a destination (e.g., a macro-cell base station) over a hybrid RF/FSO backhaul link. The relay and the destination employ multiple antennas for transmission and reception over the RF links while each mobile user has a single antenna. The RF links are orthogonal to the FSO link but half-duplex with respect to each other, i.e., either the user-relay RF link or the relay-destination RF link is active. For this communication setup, we derive the optimal fixed and adaptive link allocation policies for sharing the transmission time between the RF links based on the statistical and instantaneous channel state information (CSI) of the RF and FSO links, respectively. Thereby, we consider the following two scenarios depending on the delay requirements: 1) delay-limited transmission where the relay has to immediately forward the packets received from the users to the destination, and 2) delay-tolerant transmission where the relay is allowed to store the packets received from the users in its buffer and forward them to the destination when the quality of the relay-destination RF link is favorable. Our numerical results illustrate the effectiveness of the proposed communication architecture and link allocation policies, and their superiority compared to existing schemes, which employ only one type of backhaul link.
dc.description.sponsorshipQatar National Research Fund
dc.language.isoengen_US
dc.publisherIEEE
dc.relation.ispartofIEEE Transactions on Wireless Communications
dc.rightsrestrictedAccess
dc.titleLink allocation for multiuser systems with hybrid RF/FSO backhaul: Delay-limited and delay-tolerant designsen_US
dc.typeArticleen_US
dc.peerreviewedyes
dc.publicationstatuspublisheden_US
dc.contributor.departmentÖzyeğin University
dc.contributor.authorID(ORCID 0000-0001-5945-0813 & YÖK ID 124615) Uysal, Murat
dc.contributor.ozuauthorUysal, Murat
dc.identifier.volume15
dc.identifier.issue5
dc.identifier.startpage3281
dc.identifier.endpage3295
dc.identifier.wosWOS:000378504100014
dc.identifier.doi10.1109/TWC.2016.2519508
dc.subject.keywordsHybrid RF/FSO
dc.subject.keywordsBackhaul link
dc.subject.keywordsAdaptive/fixed link allocation
dc.subject.keywordsThroughput
dc.subject.keywordsDelay
dc.identifier.scopusSCOPUS:2-s2.0-84969871952
dc.contributor.authorMale1


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record


Share this page