On Optimal Power Sharing for Joint Sensing and Data Transmission in Cooperative Cognitive Radio Networks

被引：0
|
作者：
Ghosh, Saptarshi [1 ]
Acharya, Tamaghna [1 ]
Chatterjee, Subhankar [2 ]
Maity, Santi P. [2 ]
机构：
[1] Indian Inst Engn Sci & Technol, Dept Elect & Telecommun Engn, Sibpur 711103, Howrah, India
[2] Indian Inst Engn Sci & Technol, Dept Informat Technol, Sibpur 711103, Howrah, India
来源：
2015 TWENTY FIRST NATIONAL CONFERENCE ON COMMUNICATIONS (NCC) | 2015年
关键词：
Cognitive radio; cooperative spectrum sensing; cooperative communications; power allocation; throughput; SYSTEM;
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, the problem of joint spectrum sensing and data transmission in a two-user cooperative cognitive radio network is studied. Tractable solution for optimal power allocation is proposed for cognitive sources for both sensing and data transmission slots with an aim to maximize sum throughput of the system while meeting the constraints of probability of detection of PU's signal and total transmission power. Simulation results verify that there exists optimal power sharing factors both for sensing and data transmission slots to maximize the system throughput. Furthermore, performance gain in term of achievable system throughput is noted when the proposed scheme is compared with equal power allocation scheme operated under total power constraint scenario.
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页数：6
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