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  • VT-2016-00942_R1

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Application of non-orthogonal multiple access in cooperative spectrum-sharing networks over Nakagami-m fading channels

Research output: Contribution to journalJournal article

Published
<mark>Journal publication date</mark>06/2017
<mark>Journal</mark>IEEE Transactions on Vehicular Technology
Issue number6
Volume66
Number of pages6
Pages (from-to)5506-5511
Publication StatusPublished
Early online date10/11/16
<mark>Original language</mark>English

Abstract

This paper proposes a novel non-orthogonal multiple access (NOMA)-based cooperative transmission scheme for a spectrum-sharing cognitive radio network, whereby a secondary transmitter (ST) serves as a relay and helps transmit the primary and secondary messages simultaneously with employing NOMA signaling. This cooperation is particularly useful when the ST has good channel conditions to a primary receiver but lacks of the radio spectrum. To evaluate the performance of the proposed scheme, the outage probability and system throughput for the primary and secondary networks are derived in closed forms. Simulation results demonstrate the superior performance gains for both networks thanks to the use of the proposed NOMAbased cooperative transmission scheme. It is also revealed that NOMA outperforms conventional orthogonal multiple access and achieves better spectrum utilization.

Bibliographic note

©2016 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.