Transmit antenna selection for underlay cognitive radio with instantaneous interference constraint

Citation data:

2015 IEEE Global Communications Conference, GLOBECOM 2015, Page: 1-5

Publication Year:
Usage 2
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Citations 6
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Repository URL:
10.1109/glocom.2014.7417618; 10.1109/glocom.2015.7417618
Hanif, Muhammad; Yang, Hong Chuan; Alouini, Mohamed-Slim
Institute of Electrical and Electronics Engineers (IEEE); Institute of Electrical & Electronics Engineers (IEEE)
Computer Science; Engineering; Social Sciences; Antenna selection; Ergodic capacity; Higher order amount of fading; Order statistics; Outage probability; Underlay cognitive radio
conference paper description
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.