Energy-Efficient Outage Capacity in Sensing-Based Spectrum Sharing Cognitive Radio Networks

作     者：YAN Feiyu ZHAO Jihong QU Hua XU Xiguang 

作者机构：School of Electronic and Information Engineering Xi'an Jiaotong University School of Communication and Information Engineering Xi'an University of Posts and Telecommunications 

出 版 物：《Chinese Journal of Electronics》 (电子学报(英文))

年 卷 期：2018年第27卷第6期

页      面：1271-1276页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0804[工学-仪器科学与技术] 080402[工学-测试计量技术及仪器] 0701[理学-数学] 

基　　金：supported by the National Natural Science Foundation of China(No.61372092,No.61531013) the National High Technology Research and Development Program of China(863 Program)(No.2014AA01A701) 

主　　题：Cognitive radio network(CRN) Energy efficiency(EE) Sensing-based spectrum sharing Power allocation 

摘      要：Energy efficiency(EE) is an important metric for a Cognitive radio network(CRN). We focus on the EE maximization problem in a sensing-based spectrum sharing CRN for delay-sensitive applications. With the aid of one-dimension exhaustive search, fractional programming and Lagrange duality method, two energy-efficient optimal sensing time and power allocation policies are derived with the consideration of Average/Peak transmit power(ATP/PTP) constraints and Average interference power(AIP) constraints, respectively. Simulation results show that the proposed policies can achieve higher EE compared to the conventional spectrum sharing schemes.