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Improving the Spectral Efficiency in Dense Heterogeneous Networks Using D2D-Assisted eICIC
Institute of Computer Science - Foundation for Research and Technology - Hellas (ICS-FORTH), Greece.
Institute of Computer Science - Foundation for Research and Technology - Hellas (ICS-FORTH), Greece.
Linköpings universitet, Institutionen för teknik och naturvetenskap, Kommunikations- och transportsystem. Linköpings universitet, Tekniska fakulteten.
2018 (Engelska)Ingår i: 2018 IEEE 23rd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), Institute of Electrical and Electronics Engineers (IEEE), 2018, s. 32-37Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Heterogeneous networks (HetNets) that consist of macro base stations (MBSs) and small base stations (SBSs) are a key architectural drive for achieving the high spectral efficiency (SE) in 5G and beyond. Moreover, device-to-device (D2D) communications underlaying mobile networks can provide reliable communications and add SE gains. A major challenge in HetNets is the inter-cell interference (ICI) due to the coexistence of multiple tiers of base stations (BSs). To tackle this challenge, the enhanced inter-cell interference coordination (eICIC) scheme was adopted by 3GPP. In eICIC the MBSs mute their transmission during the so-called ᅵalmost blank subframesᅵ (ABS). This muting strategy causes resources reduction to the MBS users (MUEs). We propose the use of D2D communications to forward the transmission from the SBS to the MUEs during ABS subframes, by using inactive UEs to relay the downlink transmission, when the destination UEs are outside the coverage of the BS. We use a heuristic resource allocation (RA) algorithm based on the traffic load at the SBSs that integrates eICIC with D2D communications to avoid the service degradation during the time-domain muting. Simulation results of a HetNet with D2D-eICIC show that the SE of our approach outperforms other interference management approaches.

Ort, förlag, år, upplaga, sidor
Institute of Electrical and Electronics Engineers (IEEE), 2018. s. 32-37
Serie
International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), ISSN 2378-4865, E-ISSN 2378-4873 ; 23
Nyckelord [en]
Device-to-device communication;Relays;Interference;Downlink;Uplink;Base stations;Resource management;HetNets;D2D;SE;eICIC;ABS and RA
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Datavetenskap (datalogi)
Identifikatorer
URN: urn:nbn:se:liu:diva-152765DOI: 10.1109/CAMAD.2018.8514945ISI: 000454615800006ISBN: 9781538661512 (digital)ISBN: 9781538661505 (digital)ISBN: 9781538661529 (tryckt)OAI: oai:DiVA.org:liu-152765DiVA, id: diva2:1264572
Konferens
2018 IEEE 23rd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), 17-19 Sept. 2018, Barcelona, Spain
Anmärkning

Funding agencies: European Unions Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant [642743]

Tillgänglig från: 2018-11-20 Skapad: 2018-11-20 Senast uppdaterad: 2019-01-21Bibliografiskt granskad

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