Transmit Antenna Selection for Underlay Cognitive Radio with Instantaneous Interference Constraint

Muhammad Hanif, Hong Chuan Yang, Mohamed-Slim Alouini

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

11 Scopus citations


Cognitive radio (CR) technology addresses the problem of spectrum under-utilization. In underlay CR mode, the secondary users are allowed to communicate provided that their transmission is not detrimental to primary user communication. Transmit antenna selection is one of the low-complexity methods to increase the capacity of wireless communication systems. In this article, we propose and analyze the performance benefit of a transmit antenna selection scheme for underlay secondary system that ensures the instantaneous interference caused by the secondary transmitter to the primary receiver is below a predetermined level. Closed-form expressions of the secondary link outage probability, higher order amount of fading, and ergodic capacity are derived for the proposed scheme. Monte-carlo simulations are also carried out to confirm various mathematical results presented in this article.
Original languageEnglish (US)
Title of host publication2015 IEEE Global Communications Conference (GLOBECOM)
PublisherInstitute of Electrical & Electronics Engineers (IEEE)
ISBN (Print)9781479959525
StatePublished - Mar 28 2016

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01


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