Cognitive MIMO Relaying in Nakagami-m Fading

被引：0

作者：

Yeoh, Phee Lep ^{[1
]}

Elkashlan, Maged ^{[2
]}

Duong, Trung Q. ^{[3
]}

Yang, Nan ^{[4
]}

Leung, Cyril ^{[5
]}

机构：

[1] Univ Melbourne, Dept Elect & Elect Engn, Melbourne, Vic 3010, Australia

[2] Queen Mary Univ London, London WC1E 7HU, England

[3] Blekinge Inst Technol, Karlskrona, Sweden

[4] Univ South Wales, Sch Elect Engn & Telecommun, Sydney, NSW, Australia

[5] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V5Z 1M9, Canada

来源：

2013 IEEE 77TH VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING) | 2013年

关键词：

NETWORKS; SYSTEMS;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We propose transmit antenna selection with receive maximal-ratio combining (TAS/MRC) as an effective approach to reduce interference in cognitive multiple-input multiple-output (MIMO) relay networks. To demonstrate this, we derive new closed-form expressions for the exact and asymptotic outage probability of TAS/MRC with multiple antennas at the primary and secondary users. We consider underlay spectrum sharing where the secondary users (SUs) transmit in the presence of multiple primary users (PUs). We consider independent Nakagamim fading in both the primary and secondary networks. Several important design insights are revealed. We find that TAS/MRC achieves a full diversity when the transmit power at the SUs is proportional to the peak interference power at the PUs. Furthermore, we highlight that this diversity gain is completely independent of the number of antennas at the PUs.

引用

页数：5

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