On Joint Spectrum Sensing and Data Transmission in Relay Assisted Cognitive Radio Networks

被引：0
作者：
Chatterjee, Subhankar [1 ]
Acharya, Tamaghna [2 ]
Maity, Santi P. [1 ]
机构：
[1] Bengal Engn & Sci Univ, Dept Informat Technol, Sibpur 711103, Howrah, India
[2] Bengal Engn & Sci Univ, Dept Elect & Telecommun Engn, Sibpur 711103, Howrah, India
来源：
2014 9TH INTERNATIONAL SYMPOSIUM ON COMMUNICATION SYSTEMS, NETWORKS & DIGITAL SIGNAL PROCESSING (CSNDSP) | 2014年
关键词：
Decode and forward relay; power allocation; spectral sensing; throughput maximization; energy efficiency; POWER ALLOCATION;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper proposes a joint spectral sensing and secondary data transmission scheme in decode and forward relay assisted cognitive radio networks (CRNs). Sensing information of cognitive source (CS) and cognitive relay (CR) are cooperatively combined at CS to determine the possible presence of primary user (PU). An optimization framework is developed to determine the sensing time, data transmission time for CS and CR along with their associated transmission power to maximize the average throughput of secondary transmission. The constraints are peak transmission power of CS and CR and average interference to PU. Simulation results are provided to validate our analysis.
引用
收藏
页码：546 / 551
页数：6
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