COGNITIVE_RADIO

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High Capacity Spectrum Sensing Framework Based on Relay Cooperation被引量：1
《China Communications》2016年第8期117-126,共10页Wu Xuanli Han Xingling Fabrice Labeau 
supported in part by the National Basic Research Program of China(973 Program),under grant No.2013CB329003;National Nature Science Foundation of China under grant No.61301100;Hydro-Quebec,the Natural Sciences and Engineering Research Council of Canada,and Mc Gill University in the framework of the NSERC/Hydro-Quebec Industrial Research Chair in Interactive Information Infrastructure for the Power Grid under grant No.IRCPJ406021-14
In order to reduce interference to primary users and provide better performance of detection probability and channel capacity in multi-user cooperative spectrum sensing networks, a high capacity spectrum sensing frame...
关键词：cognitive radio cooperative spectrum sensing energy detection detection probability channel capacity 
Time-Efficient Power Allocation Scheme for Two-Way Multi-relay Cognitive Radio Networks
《Chinese Journal of Electronics》2016年第2期357-363,共7页ZHOU Zhikang ZHU Qi 
supported by National Natural Science Foundation of China(No.61171094);National Basic Research Program of China(973 program)(No.2013CB329005);863 Program(No.2014AA01A705);Key Project of Jiangsu Provincial Natural Science Foundation(No.BK2011027)
Cooperative relaying has been emerging as a key technology in Cognitive radio(CR) networks. A two-way Amplify-and-forward(AF) based multi-relay CR network is considered, where a primary user coexists with a pair of se...
关键词：Power allocation Relay network Cognitive radio Amplify-and-forward Two-way communication 
Coordinated Multi-User Spectrum Sharing in Distributed Antenna-Based Cognitive Radio Systems被引量：6
《China Communications》2016年第1期57-67,共11页ZHAO Juntao FENG Wei ZHAO Ming WANG Jing 
supported in part by the National Science Foundation of China for Young Scholars under grant No.61201186;The National Basic Research Program undergrant No.2012AA01A502;National Natural Science Foundation of China under grant No.61201192;National S&T Major Project under grant No.2014ZX03003003-002;Tsinghua-HUAWEI Joint R&D on Soft Defined Protocol Stack;Tsinghua-HUAWEI Joint Research on 5G Air Interface Technical;Tsinghua-Qualcom joint research program;Independent innovation on Future Virtualization Platform under grant No.015Z02-3
Spectrum sharing for efficient reuse of licensed spectrum is an important concept for cognitive radio technologies.In a spectrum-sharing system(SSS),deploying the antennas in a distributed manner can offer a new spati...
关键词：cognitive radio distributed anten-na spectrum-sharing system antenna selec-tion power allocation 
Cyclostationary Feature Detection Based Spectrum Sensing Algorithm under Complicated Electromagnetic Environment in Cognitive Radio Networks被引量：19
《China Communications》2015年第9期35-44,共10页Yang Mingchuan Li Yuan Liu Xiaofeng Tang Wenyan 
sponsored by National Basic Research Program of China (973 Program, No. 2013CB329003);National Natural Science Foundation of China (No. 91438205);China Postdoctoral Science Foundation (No. 2011M500664);Open Research fund Program of Key Lab. for Spacecraft TT&C and Communication, Ministry of Education, China (No.CTTC-FX201305)
This paper focuses on improving the detection performance of spectrum sensing in cognitive radio(CR) networks under complicated electromagnetic environment. Some existing fast spectrum sensing algorithms cannot get sp...
关键词：cognitive radio cyclostationary feature detection Hilbert transformation 
Effective capacity region and power allocation for two-way spectrum sharing cognitive radio networks被引量：1
《Science China(Information Sciences)》2015年第6期122-131,共10页XU Ding LI Qun 
supported by the National Natural Science Foundation of China(Grant No.61401218);National Basic Research Program of China(973)(Grant No.2013CB329005);National High-Tech R&D Program(Grant No.2014AA01A705);Nanjing University of Posts and Telecommunications Program(Grant Nos.NY213071and NY213086)
In this paper, we consider a spectrum sharing cognitive radio （CR） network where a pair of two- way secondary users （SUs） is allowed to coexist with a primary user （PU） as long as the interference power received...
关键词：cognitive radio effective capacity delay quality-of-service power allocation two-way 
Impact of Maximum Transmit Power Limit on the First-Order and Second-Order Performance of Cognitive Opportunistic Relaying
《China Communications》2015年第5期75-85,共11页JIA Xiangdong DENG Pengfei ZHOU Ming YANG Longxiang ZHU Hongbo 
supported by the Natural ScienceFoundation of China under Grant 61261015;the 973 project 2013CB329104;the Natural Science Foundation of China under Grant61372124,61363059,and 61302100;the projects BK2011027;the Natural Science Foundation of Gansu Province for Distinguished Young Scholars(1308RJDA007);the Foundation Research Funds for the University of Gansu Province:'Massive MIMO channels modeling and estimation over millimeter wave band for 5G'
Abstract： This paper focuses on the first-or- der and second-order performance of dual-hop underlay cognitive radio systems with oppor- tunistic relaying （UCR-OR） over indepen- dent and non-identically distributed ...
关键词：cognitive radio opportunistic relaying outage probability average outage rate average outage duration 
Key techniques for 5G wireless communications:network architecture, physical layer,and MAC layer perspectives被引量：52
《Science China(Information Sciences)》2015年第4期1-20,共20页MA Zheng ZHANG ZhengQuan DING ZhiGuo FAN PingZhi LI HengChao 
supported by National Basic Research Program of China (973 Program) (Grant No. 2012CB316100);National High-tech R&D Program of China (863 Program) (Grant No. 2014AA01A707);111 Project (Grant No. 111-2-14);Open Research Foundation of National Mobile Communications Laboratory, Southeast University (Grant No. 2011D16);Fundamental Research Funds for the Central Universities (Grant Nos. SWJTU11CX147, SWJTU11CX040)
The fourth generation （4G） mobile communication systems are offering service worldwide steadily. Although 4G systems could be loaded with much more services and data than previous systems, there is still a dramatic ...
关键词：5G software defined network non-orthogonal multiple access massive MIMO full duplex device-to-device communications millimeter wave communications cognitive radio 
Sensor node-assisted asynchronous cooperative spectrum sensing for cognitive radio network被引量：2
《The Journal of China Universities of Posts and Telecommunications》2014年第5期17-23,共7页CAO Kai-tian WANG Dong-lin 
supported by the National Basic Research Program of China (2011CB302903);the National Natural Science Foundation of China (61201161, 61271335);the Postdoctoral Science Foundation of Jiangsu Province (1301002B)
In order to take advantage of the asynchronous sensing information, alleviate the sensing overhead of secondary users （SUs） and improve the detection performance, a sensor node-assisted asynchronous cooperative spec...
关键词：cognitive radio asynchronous cooperative spectrum sensing Bayesian fusion rule ON-OFF model soft decision 
Joint optimal sensing time and power allocation for multi-channel cognitive radio networks considering sensing-channel selection被引量：2
《Science China(Information Sciences)》2014年第4期130-137,共8页YU HuoGen TANG WanBin LI ShaoQian 
supported in part by High-tech R&D Program of China (863 Program) (Grant Nos. 2009AA011801, 2009AA012002);National Fundamental Research Program of China (Grant No. A1420080150);National Basic Research Program of China (973 Program) (Grant No. 2009CB320405);Nation Grand Special Science and Technology Project of China (Grant Nos. 2008ZX03005-001, 2009ZX03007-004, 2009ZX03005-002, 2009ZX03005004, 2010ZX03006-002);Foundation Project of National Key Laboratory of Science and Technology on Communications and Special Project on Broadband Wireless Access sponsored by Huawei Co., Ltd.
In this paper, we consider a multi-channel cognitive radio network （CRN） where each secondary user （SU） can only choose to sense a subset of channels. We formulate a joint optimization problem of sensing- channel ...
关键词：cognitive radio joint optimization sensing-channel selection sensing time power allocation 
Multi-Channel Spectrum Sensing in Cognitive Ad-hoc Networks:An Energy-Efcient Manner
《Journal of Shanghai Jiaotong university(Science)》2013年第5期513-519,共7页李鹤 甘小莺 陈时阳 冯心欣 
the National Natural Science Foundation of China(Nos.61102052 and 60972050);the National Basic Research Program(973)of China(No.2010CB731803);the China Ministry of Education Fok Ying Tung Fund(No.122002);the National Science and Technology Major Project of China(Nos.2010ZX03002-007-01 and 2010ZX03003-001-01)
Cognitive radio,which is capable of enabling dynamic spectrum access,is a promising technology in future wireless communication.The feasibility of cognitive radio network greatly depends on the energy efciency and rel...
关键词：cognitive radio spectrum sensing energy efciency ad-hoc network MULTI-CHANNEL 
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