Outage Analysis of a Multiple-Antenna Cognitive Radio System With Cooperative Decode-and-Forward Relaying

被引：27
|
作者：
Vashistha, Ankush [1 ]
Sharma, Shubha [1 ]
Bohara, Vivek Ashok [1 ]
机构：
[1] IIIT Delhi, ECE Dept, Wireless Syst Lab, New Delhi, India
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2015年 / 4卷 / 02期
关键词：
Cognitive radio; spectrum sharing; decode and forward relaying; cooperative communication;
D O I：
10.1109/LWC.2014.2382587
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we analyze a two-phase hierarchical spectrum sharing protocol based on cooperative decode and forward relay transmission wherein it is assumed that the cognitive (i.e secondary) system is equipped with multiple antennas. The performance of the licensed (i.e. primary) as well as cognitive system is quantified by deriving the closed form expressions for outage probability. The theoretical and simulation results show that by exploiting multiple antennas at secondary transmitter (ST), we can drastically improve the performance of both primary and secondary systems as compared to conventional spectrum sharing schemes.
引用
收藏
页码：125 / 128
页数：4
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