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  • CL2016_1757.R1

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Cooperative non-orthogonal multiple access in cognitive radio

Research output: Contribution to journalJournal article

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<mark>Journal publication date</mark>10/2016
<mark>Journal</mark>IEEE Communications Letters
Issue number10
Volume20
Number of pages4
Pages (from-to)2059-2062
Publication statusPublished
Early online date1/08/16
Original languageEnglish

Abstract

This letter studies the application of non-orthogonal multiple access to a downlink cognitive radio (termed CR-NOMA) system. A new cooperative transmission scheme is proposed aimed at exploiting the inherent spatial diversity offered by the CR-NOMA system. The closed-form analytical results are developed to show that the cooperative transmission scheme gives better performance when more secondary users participate in relaying, which helps achieve the maximum diversity order at secondary user and a diversity order of two at primary user. The simulations are performed to validate the performance of the proposed scheme and the accuracy of the analytical results.

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©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.