Optimal Spectrum Sensing Time and Transmit Power Based on Energy Efficiency in Cognitive Radio Networks

被引：0
|
作者：
Dai, J. X. [1 ]
Ni, Z. J. [2 ]
Liang, J. W. [2 ]
Wang, X. [1 ]
Yuan, T. [2 ]
机构：
[1] Nanjing Univ Posts & Telecommun, Sch Sci, Nanjing, Jiangsu, Peoples R China
[2] Nanjing Univ Posts & Telecommun, Coll Telecommun & Informat Engn, Nanjing, Jiangsu, Peoples R China
来源：
PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE AND INDUSTRIAL ENGINEERING (AIIE 2015) | 2015年 / 123卷
关键词：
cognitive radio; spectrum sensing; energy efficiency; sensing time; transmit power; DESIGN;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
The optimization problems of spectrum sensing time and power in CR network are investigated in this paper. Firstly, the energy efficiency optimization problem, whose variables that should be jointly optimized are transmit power and sensing time of cognitive users, is derived. Then, the relations between the energy efficiency and transmit power, the energy efficiency and spectrum sensing time are analyzed, respectively. The numerical results show that CR network can achieve almost the maximum achievable data rate with significant energy saving through the joint optimization.
引用
收藏
页码：534 / 538
页数：5
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