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Heterogeneous Ultradense Networks with NOMA System Architecture, Coordination Framework, and Performance Evaluation
Southwest Jiaotong Univ, Chengdu, Sichuan, Peoples R China..
KTH, Skolan för elektroteknik och datavetenskap (EECS), Teknisk informationsvetenskap.ORCID-id: 0000-0003-0134-2996
Southwest Jiaotong Univ, Chengdu, Sichuan, Peoples R China.;Sch Informat Sci & Technol, Stockholm, Sweden..
KTH, Skolan för elektroteknik och datavetenskap (EECS), Teknisk informationsvetenskap.ORCID-id: 0000-0002-5407-0835
Vise andre og tillknytning
2018 (engelsk)Inngår i: IEEE Vehicular Technology Magazine, ISSN 1556-6072, E-ISSN 1556-6080, Vol. 13, nr 2, s. 110-120Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Heterogeneous ultradense networks (H-UDNs) are one key enabler for fifth-generation (5G) wireless networks and beyond to satisfy the explosive growth of mobile data traffic, which exploits spatial reuse of scarce spectrum by deploying massive base stations (BSS) to boost network capacity and enhance network coverage. In this article, we present the system architecture for 5G H-UDNs, consisting of virtualized integrated ground-Air-space radio access networks (RANs) and core networks and study network coordination for virtualized H-UDN to efficiently manage computing resources and intercell interference. We look at a cloud-fog-computing coordination framework for efficient computing resource management by achieving reasonable computing task distribution and transfer; computing load balance for computing tasks among virtual computing resources to improve network performance and computing resource efficiency; and a macro-small cell coordination framework for virtualized H-UDN with nonorthogonal multiple access (NOMA) to efficiently manage intercell interference and improve network performance. The joint macro-small enhanced intercell interference coordination (eICIC) and small-small coordinated multipoint joint transmission (CoMP-JT) scheme can efficiently eliminate macro-small intercell interference and utilize small-small intercell interference.

sted, utgiver, år, opplag, sider
Institute of Electrical and Electronics Engineers (IEEE), 2018. Vol. 13, nr 2, s. 110-120
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Identifikatorer
URN: urn:nbn:se:kth:diva-230478DOI: 10.1109/MVT.2018.2812280ISI: 000433094600016Scopus ID: 2-s2.0-85046375092OAI: oai:DiVA.org:kth-230478DiVA, id: diva2:1217699
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QC 20180613

Tilgjengelig fra: 2018-06-13 Laget: 2018-06-13 Sist oppdatert: 2018-06-19bibliografisk kontrollert

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