Cooperative non-orthogonal multiple access in cognitive radio

Lv, Lu and Chen, Jian and Ni, Qiang (2016) Cooperative non-orthogonal multiple access in cognitive radio. IEEE Communications Letters, 20 (10). pp. 2059-2062. ISSN 1089-7798

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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.

Item Type:
Journal Article
Journal or Publication Title:
IEEE Communications Letters
Additional Information:
©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.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2208
Subjects:
ID Code:
83077
Deposited By:
Deposited On:
28 Nov 2016 09:50
Refereed?:
Yes
Published?:
Published
Last Modified:
14 Jul 2020 05:51