COGNITIVE_RADIO

作品数：337被引量：453H指数：8
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A Novel Goodness of Fit Test Spectrum Sensing Using Extreme Eigenvalues
《Chinese Journal of Electronics》2020年第6期1201-1206,共6页LI He ZHAO Wenjing LIU Chang JIN Minglu YOO Sang-Jo 
supported by the Ministry of Science,ICT(MSIT),South Korea,under the Information Technology Research Center(ITRC)support program(IITP-2019-2014-1-00729);supervised by the Institute of Information and communications Technology Planning and Evaluation(IITP).
The existing Goodness of fit(GoF)test based spectrum sensing algorithms mostly use samples or energies as observations to make decisions,which can hardly achieve satisfactory performance especially when the Primary us...
关键词：Cognitive radio spectrum sensing goodness of fit test EIGENVALUE 
Q-Learning Based Interference-Aware Channel Handoff for Partially Observable Cognitive Radio Ad Hoc Networks
《Chinese Journal of Electronics》2017年第4期856-863,共8页XU Ning ZHANG Huyin XU Fang WANG Zhiyong 
supported by the National Natural Science Foundation of China(No.61272454,No.61540059);the Specialized Research Fund for the Doctoral Program of Higher Education(No.20130141110022);the Natural Science Foundation of Hubei Province in China(No.2016CFB652)
Channel handoff is a crucial function for Cognitive radio ad hoc networks(CRAHNs). The absence of centralized infrastructures and the limited power make the handoff design more challenging. A learningbased interferenc...
关键词：Cognitive radio Ad hoc networks Partially observable Markov decision process(POMDP) HANDOFF Q-LEARNING 
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 
Time Agility Optimization for Dual-stage Collaborative Spectrum Sensing被引量：1
《Chinese Journal of Electronics》2014年第2期399-402,共4页CUI Cuimei WANG Yiming 
supported by National Natural Science Foundation of China under Grant(No.60872003 and No.61172056);Doctoral Fund of Ministry of Education of China under Grant(No.20093201110005)
Cooperative spectrum sensing has been shown to be an effective method to mitigate the impact of hidden terminal and shadow fading in cognitive radio networks. Currently most works focused on either coop- erative sensi...
关键词：Cognitive radio Dual collaboration spec- trum sensing Time-division multiple-access Time agility Optimization. 
Dynamic Programming Based Power Control Algorithm with Primary User QoS Guarantee for Cognitive Radio Networks被引量：3
《Chinese Journal of Electronics》2013年第2期353-358,共6页LIANG Hui ZHAO Xiaohui 
This work is supported by the National Nature Science Foundation of China （No.61171079）.
To maximize the average rate in a long- term scope while guarantee primary user＇s QoS demand is a new key issue in cognitive radio systems. A dynamic programming based power control algorithm with the con- sideration...
关键词：Cognitive radio Power control Dynamic programming Rate loss constraint. 
Primary User QoS and Activity Concerned Resource Allocation Algorithm in OFDM Based Cognitive Radio System被引量：2
《Chinese Journal of Electronics》2013年第1期167-172,共6页LIANG Hui ZHAO Xiaohui 
This work is supported by the National Natural Science Foundation of China （No.61171079）.
Efficient and reliable resource allocation algorithm is one of the key problems for the realization of cognitive radio networks. Due to the rapidly changing characteristics of cognitive environment, water-filling algo...
关键词：Cognitive radio Resource allocation Pri-mary user activity Outage probability. 
Power Allocation Based on Genetic Simulated Annealing Algorithm in Cognitive Radio Networks被引量：8
《Chinese Journal of Electronics》2013年第1期177-180,共4页ZHAO Junhui GUAN Xin LI Xiuping 
This work is supported by the National Natural Science Foundation of China （No.61172073）, the State Key Laboratory of Rail Traffic Control and Safety （No.RCS2011ZT003）, Beijing Jiaotong University, the open research fund of National Mobile Communications Research Laboratory, Southeast University, China, and the Fundamental Research Funds for the Central Universities, Beijing Jiaotong University.
To maximize the utility of cognitive net-works, the interference constraints to ensure primary users＇ Quality of service （QoS） standards is considered in this paper. The interference temperature model was used to m...
关键词：Cognitive radio network Interferencetemperature Power allocation Genetic simulated anneal-ing algorithm. 
Cosine-Modulated Transceivers for TV White Space Cognitive Access被引量：2
《Chinese Journal of Electronics》2012年第2期362-366,共5页ZHAO Nan PU Fangling XU Xin CHEN Nengcheng 
FCC recently issued regulatory rules for the reuse of the underutilized TV white space spectrum without negative impact on digital television broadcasts. Cognitive Radio techniques are of great importance to ac- quire...
关键词：Cognitive radio Orthogonal frequencydivision multiplexing （OFDM） Cosine modulated filterbanks （CMFB）~ Effective throughput~ Out-of-band powerleakage. 
Defense Against Objective Function Attacks in Cognitive Radio Networks被引量：7
《Chinese Journal of Electronics》2011年第1期138-142,共5页PEI Qingqi LI Hongning MA Jianfeng FAN Kefeng 
This work is supported by the National Natural Science Foundation of China （No.60803150, No.60803151）, the National High Technology Research and Development Program of China （No.2008AA01Z411）, the Key Program of NSFC-Guangdong Union Foundation （No.U0835004）, China Postdoctoral Science Foundation （No.20090451） and the Planned Science and Technology Project of Shannxi Province （No.2009K08-38）.
Cognitive radio （CR） is a technology for identifying opportunities using the ＂spectrum holes＂ for communication by cognition. Consequently, we can increase spectrum resource utilization rate with CR. However, it i...
关键词：Cognitive radio Parameters attacks Objective function attacks Spectrum sensing Multi-objective programming. 
Study on Dynamic Spectrum Management Model for Interactive Cognitive Radio被引量：3
《Chinese Journal of Electronics》2010年第1期145-149,共5页MA Zhonggui ZHOU Xianwei WANG Hongbo TU Xuyan 
This work is supported by the National Natural Science Foundation of China （No.60773074）, China National Science and Technology Supporting Project of the llth Five Years Plan （No.2006BAJ04B07-2）.
In Interactive cognitive radio networks （ICRN）, secondary usage of spectrum is of competition and conflict, and radio frequency environment is time-varying. In order to realize real-time secondary spectrum usage, we...
关键词：Cognitive radio （CR） Differential games Dynamic spectrum management. 
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