Cooperative Beamforming in Cognitive Radio Network with Network-Coded Bidirectional Filter-and-Forward Relaying

被引：0
|
作者：
Shamailzadeh, Mahdi [1 ]
Bastami, Ali H. [1 ]
机构：
[1] KN Toosi Univ Technol, Dept Elect Engn, Tehran, Iran
来源：
2016 24TH IRANIAN CONFERENCE ON ELECTRICAL ENGINEERING (ICEE) | 2016年
关键词：
Bidirectional relaying; cognitive radio; cooperative beamforming; filter-and-forward; network coding; sum rate; SUM-RATE; AMPLIFY;
D O I：
暂无
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：
In this paper, for an underlay cognitive radio network with network-coded bidirectional filter-and-forward (FF) relaying, two cooperative beamforming schemes are proposed. The first scheme maximizes the worst signal-to-interference-plus-ISI-and-noise ratio ((SINR)-N-2) of the secondary users such that the interference level at the primary receiver does not exceed an allowable threshold. The second scheme maximizes the sum rate of the secondary users under a total power constraint for the relay nodes as well as an interference temperature constraint for the primary network. The simulation results demonstrate that the proposed schemes have significant performance improvement compared to the amplify-and-forward (AF)-based beamforming schemes.
引用
收藏
页码：1454 / 1459
页数：6
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