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Diverse Communication Modes in Cooperative Downlink Non-Orthogonal Multiple Access - Invited Paper
KTH, School of Electrical Engineering and Computer Science (EECS), Information Science and Engineering.ORCID iD: 0000-0001-9456-8702
KTH, School of Electrical Engineering and Computer Science (EECS), Information Science and Engineering.ORCID iD: 0000-0002-5407-0835
2018 (English)In: IEEE Vehicular Technology Conference, Institute of Electrical and Electronics Engineers Inc. , 2018, p. 1-5Conference paper, Published paper (Refereed)
Abstract [en]

We consider cooperation in downlink non-orthogonal multiple access (NOMA) in a network supporting diverse communication modes. One user (UE2) exists as a potential relay between a base station (BS) and another user (UE1). With relaying the signal for UE1, UE2 obtains the opportunity for its own transmission to UE3 in D2D mode, meanwhile maintaining the transmission efficiency for UE1. On the basis of supporting different communication modes, we propose a NOMA-based cooperation scheme at UE2 to combine the relay message with its own. We derive achievable rate regions for two cases depending on the status of the Rayleigh fading channel of the UE2. We find solutions based on experiments through the transmit power allocation strategy at the UE2 and(/or) the BS. We show the impacts of our cooperative scheme and the corresponding user geometry on the achievable rates and the resource sharing strategies. © 2018 IEEE.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers Inc. , 2018. p. 1-5
Keywords [en]
Fading channels, Rayleigh fading, Achievable rate region, Communication mode, Cooperative schemes, Diverse communications, Non orthogonal multiple accesses (NOMA), Non-orthogonal multiple access, Transmission efficiency, Transmit power allocation, Cooperative communication
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-238072DOI: 10.1109/VTCSpring.2018.8417569Scopus ID: 2-s2.0-85050976186ISBN: 9781538663554 (print)OAI: oai:DiVA.org:kth-238072DiVA, id: diva2:1278572
Conference
87th IEEE Vehicular Technology Conference, VTC Spring 2018, 3 June 2018 through 6 June 2018
Note

Conference code: 138181; Export Date: 30 October 2018; Conference Paper; CODEN: IVTCD

QC 20190114

Available from: 2019-01-14 Created: 2019-01-14 Last updated: 2019-01-14Bibliographically approved

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Li, NanXiao, MingRasmussen, Lars Kildehöj

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  • apa
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Output format
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