Interweave Cognitive Radio with Improper Gaussian Signaling

Wafa Hedhly, Osama Amin, Mohamed-Slim Alouini

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

Improper Gaussian signaling (IGS) has proven its ability in improving the performance of underlay and overlay cognitive radio paradigms. In this paper, the interweave cognitive radio paradigm is studied when the cognitive user employs IGS. The instantaneous achievable rate performance of both the primary and secondary users are analyzed for specific secondary user sensing and detection capabilities. Next, the IGS scheme is optimized to maximize the achievable rate secondary user while satisfying a target minimum rate requirement for the primary user. Proper Gaussian signaling (PGS) scheme design is also derived to be used as benchmark of the IGS scheme design. Finally, different numerical results are introduced to show the gain reaped from adopting IGS over PGS under different system parameters. The main advantage of employing IGS is observed at low sensing and detection capabilities of the SU, lower PU direct link and higher SU interference on the PU side.
Original languageEnglish (US)
Title of host publicationGLOBECOM 2017 - 2017 IEEE Global Communications Conference
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-6
Number of pages6
ISBN (Print)9781509050192
DOIs
StatePublished - Jan 15 2018

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