Transmit Antenna Selection for Underlay Cognitive Radio with Instantaneous Interference Constraint

被引：0
|
作者：
Hanif, Muhammad [1 ]
Yang, Hong-Chuan [1 ]
Alouini, Mohamed-Slim [2 ]
机构：
[1] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC, Canada
[2] King Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn Div, Thuwal, Makkah Province, Saudi Arabia
来源：
2015 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM) | 2015年
关键词：
Antenna selection; ergodic capacity; higher order amount of fading; order statistics; outage probability; underlay cognitive radio; CAPACITY;
D O I：
10.1109/GLOCOM.2015.7417618
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
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页数：5
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