Fundamental Limits of Spectrum Sharing for NOMA-Based Cooperative Relaying

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Title: Fundamental Limits of Spectrum Sharing for NOMA-Based Cooperative Relaying
Authors: Kumar, VaibhavCardiff, BarryFlanagan, Mark F.
Permanent link: http://hdl.handle.net/10197/11112
Date: 13-Dec-2018
Online since: 2019-10-07T13:10:32Z
Abstract: Non-orthogonal multiple access (NOMA) and spectrum sharing (SS) are two emerging multiple access technologies for efficient spectrum utilization in the fifth-generation (5G) wireless communications standard. In this paper, we present a closed-form analysis of the average achievable sum-rate and outage probability for a NOMA-based cooperative relaying system (CRS) in an underlay spectrum sharing scenario. We consider a peak interference constraint, where the interference inflicted by the secondary (unlicensed) network on the primary-user (licensed) receiver (PU-Rx) should be less than a predetermined threshold. We show that the CRS-NOMA outperforms the CRS with conventional orthogonal multiple access (OMA) for large values of peak interference power at the PU-Rx.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: IEEE
Copyright (published version): 2018 IEEE
Keywords: RelaysInterferenceNOMAReceiving antennasFading channelsSignal to noise ratio
DOI: 10.1109/GLOCOMW.2018.8644252
Other versions: https://globecom2018.ieee-globecom.org/
Language: en
Status of Item: Unspecified
Is part of: 2018 IEEE Globecom Workshops, GC Workshops (GC Wkshps): Proceedings
Conference Details: 2018 IEEE Globecom Workshops (GC Wkshps), Abu Dhabi, United Arab Emirates, 9-13 December 2018
ISBN: 9781538649206
Appears in Collections:Electrical and Electronic Engineering Research Collection

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