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COGNITIVE_RADIO: 作品数：337被引量：453H指数：8; 导出分析报告; 相关作者：胡静宋铁成沈连丰瓦希德邵建华更多>>; 相关机构：东南大学北京邮电大学南京师范大学北京工业大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划国家教育部博士点基金更多>>

OPTIMIZATION OF MULTIPLE-CHANNEL COOPERATIVE SPECTRUM SENSING WITH DATA FUSION RULE IN COGNITIVE RADIO NETWORKS: 《Journal of Electronics(China)》2012年第6期515-522,共8页Yu Huogen Tang Wanbin Li Shaoqian; Supported by the National Natural Science Foundation of China (No. 61271169);National Basic Research Program (973 Program) of China (No. 2009CB320405);Nation Grand Special Science and Technology Project of China under Grant (No. 2010ZX03006-002, 2010ZX03002-008-03); This paper focuses on multi-channel Cooperative Spectrum Sensing (CSS) where Secondary Users (SUs) are assigned to cooperatively sense multiple channels simultaneously. A multi-channel CSS optimization problem of join...; 关键词：Cooperative Spectrum Sensing (CSS) Cognitive radio Branch and Bound (BnB) algorithm Greedy algorithm

OPTIMIZATION OF SPECTRUM UTILIZATION IN COGNITIVE RADIO SYSTEM: 《Journal of Electronics(China)》2011年第4期450-459,共10页Li Hongjiang Zhu Qi; Supported by the National Natural Science Foundation of China (No. 61171094,61001077,61071092);973 Program(2007 CB310607);National Science & Technology Key Project (2011ZX03001-006-02,2011ZX03005-004-03); In Cognitive Radio(CR) networks,CR user has to detect the spectrum channel periodically to make sure that the channel is idle during data transmission frame in order to avoid the collisions to the primary users.Hence ...; 关键词：Cognitive Radio(CR) Collision rate Traffic model Media Access Control(MAC) random access TRADEOFF

COOPERATIVE WIDEBAND SPECTRUM SENSING BASED ON SEQUENTIAL COMPRESSED SENSING被引量：2: 《Journal of Electronics(China)》2011年第3期313-319,共7页Gu Bin Yang Zhen Hu Haifeng; Supported by the National High Technology Research and Development Program(No.2009AA01Z241);the National Natural Science Foundation(No.60971129,No.61071092); Compressed sensing offers a new wideband spectrum sensing scheme in Cognitive Radio (CR). A major challenge of this scheme is how to determinate the required measurements while the signal sparsity is not known a prior...; 关键词：Cognitive Radio (CR) Wideband spectrum sensing Sequential compressed sensing Matching pursuit

A DISTRIBUTED COOPERATIVE RELAYING OPTIMIZATION SCHEME FOR SECONDARY TRANSMISSION IN COGNITIVE RADIO NETWORKS: 《Journal of Electronics(China)》2011年第1期8-14,共7页Chert Dan Ji Hong; Supported by the National Natural Science Foundation (No. 60832009);the Beijing Municipal Natural Science Foundation(No. 4102044);the National Natural Science Foundation for Distinguished Young Scholar(No. 61001115); In Cognitive Radio(CR) networks,cooperative communication has been recently regarded as a key technology for improving the spectral utilization efficiency and ensuring the Quality of Service(QoS) for Primary Users(PUs...; 关键词：Cognitive Radio(CR) Secondary transmission Relay selection Power allocation Restless bandit system

INTERFERENCE ESTIMATION AND ITS APPLICATIONS IN COGNITIVE RADIO NETWORKS: 《Journal of Electronics(China)》2010年第5期630-638,共9页Chen Ronghao Chen Wei Wang Jun Li Shaoqian; Supported by the High-tech Research and Development Program (863 Program) of China (No. 2009AA011801);the National Basic Research Program (973 Program) of China (No. 2009CB320405);the Foundation Project of National Key Laboratory of Science and Technology on Communications (No. 9140C0202061004);the Fundamental Research Funds for the Central Universities (No. ZYGX2009X002); Cognitive Radio(CR) has been proposed as a system-level means to improve the spectrum utilization efficiency.The most significant premise for CR networks is to avoid harmful interference to the licensed users.Therefor...; 关键词：Cognitive Radio (CR) Spectrum sensing Interference estimation

A MULTI-RESOLUTION SPECTRUM SENSING (MRSS) SCHEME UNDER MEASUREMENT-BASED CHANNEL MODELS IN COGNITIVE RADIO: 《Journal of Electronics(China)》2010年第5期639-646,共8页Gou Tianhang Sun Kun Li Yingzhe Li Pengpeng Wang Ping; Supported by the National Major R&D Program of China (No. 2009ZX03003-008); Spectrum sensing is one of the key technologies in Cognitive Radios(CRs).Previous works are accomplished under simple channel models,which may lead to unreliable results when it applied to the over-the-air systems.In ...; 关键词：Spectrum sensing Cognitive Radio (CR) MULTI-RESOLUTION Measurement-based channel

AN EFFECTIVE SUBOPTIMAL POWER LOADING SCHEME IN OFDM-BASED COGNITIVE RADIO SYSTEMS: 《Journal of Electronics(China)》2010年第5期655-663,共9页Yan Shuangcheng Ren Pinyi Hu Wenquan; Supported by the National Natural High-Tech Research and Development Plan of China (No. 2009AA011801);the National Natural Science Foundation of China (No. 60832007); Orthogonal frequency division multiplexing(OFDM) is an attractive modulation candidate for Cognitive Radio(CR) networks.Effective and reliable subcarrier power allocation in OFDM-based Cognitive Radio(CR) networks is ...; 关键词：Orthogonal Frequency Division Multiplexing (OFDM) Cognitive Radio (CR) Power allocation

OPTIMAL POWER ALLOCATION FOR COGNITIVE RADIO UNDER INTERFERENCE OUTAGE CONSTRAINT: 《Journal of Electronics(China)》2010年第5期664-670,共7页Lu Luxi Jiang Wei Xiang Haige Luo Wu; Supported by the National Natural Science Foundation of China (No. 60972008); Cognitive radio is able to share the spectrum with primary licensed user,which greatly improves the spectrum efficiency.We study the optimal power allocation for cognitive radio to maximize its ergodic capacity under ...; 关键词：Cognitive radio Ergodic capacity Interference outage constraint Power allocation

MODELING RADIO RESOURCE MANAGEMENT IN COGNITIVE RADIO SYSTEM BASED ON OFDMA USING COLORED PETRI NET被引量：2: 《Journal of Electronics(China)》2010年第5期671-676,共6页Lu Yanhui Zhang Yuqiong Yang Shouyi Mu Xiaomin; Supported by the National Natural Science Foundation of China (No. 60702020); Cognitive Radio(CR) system based on Orthogonal Frequency Division Multiple Access(OFDMA),such as Wireless Regional Area Networks(WRAN) and Worldwide Interoperability for Microwave Access(WiMAX),often attempt to improv...; 关键词：Cognitive Radio (CR) Dynamic Radio Resource Management (RRM) Colored Petri Net (CPN) Modeling and evaluation

ERGODIC CAPACITY ANALYSIS FOR SIMO COGNITIVE FADING CHANNEL IN SPECTRUM SHARING ENVIRONMENT: 《Journal of Electronics(China)》2010年第5期677-685,共9页Yang Yang Wang Jinlong Wu Qihui Liu Xin; Supported by the National Basic Research Program (973) of China (No. 2009CB320400);the National High-Tech Research and Development Program (863) of China (No. 2009AA01Z243);the National Natural Science Foundation of China (No. 61072044);the Natural Science Fund of Jiangsu Province (BK2009056); In this paper,we consider the spectrum sharing Cognitive Radio(CR) system,wherein Single-Input Multi-Output(SIMO) cognitive fading channel is assumed.Subject to the average in-terference constraint of primary user,the...; 关键词：Cognitive Radio (CR) BEAMFORMING Power control Ergodic capacity Single-Input Multi-Output (SIMO)

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