云南高校图书馆联盟文献共享服务平台- COGNITIVE

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>>

A Spectrum Sharing Model that Counters Eavesdropping:An Energy Efficiency View: 《Journal of Harbin Institute of Technology(New Series)》2021年第2期47-54,共8页Yee-Loo Foo; Wireless transmission is subject to eavesdropping.When wireless transmission ceases,the assigned frequency channel is unused,wasting the spectral opportunity given.In this study,a spectrum sharing model that reduces s...; 关键词：spectrum sharing cognitive radio physical layer security EAVESDROPPING jamming THROUGHPUT energy efficiency

Estimation for Traffic Arrival Rate and Service Rate of Primary Users in Cognitive Radio Networks: 《Journal of Harbin Institute of Technology(New Series)》2015年第5期61-68,共8页Xiaolong Yang Xuezhi Tan; Sponsored by the National Natural Science Foundation of China(Grant No.61071104); In order to estimate the traffic arrival rate and service rate parameters of primary users in cognitive radio networks,a hidden Markov model estimation algorithm( HMM-EA) is proposed,which can provide better estimatio...; 关键词：cognitive radio hidden Markov model cooperative detection

A Static Spectrum Aggregation Algorithm in Cognitive Radio System: 《Journal of Harbin Institute of Technology(New Series)》2013年第2期40-44,共5页Cong Yin Xue-Zhi Tan Lin Ma Xiu-Hua Li; Sponsored by the National Natural Science Foundation of China(Grant No.61071104);National Key Scientific and Technological Project(Grant No.2012ZX03004-003);Science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory(Grant No.ITD-U12004/K1260010); Cognitive radio ( CR) is known as an intelligent technology allowing a secondary user ( SU) to occupy a primary user's ( PU's) band when it is idle. Appearance of the idle band may be contiguous or non-contiguous. In ...; 关键词：cognitive radio static spectrum aggregation non-contiguous OFDM

Multi-slots Wideband Cooperative Spectrum Sensing Based on Weighed Data Fusion in Cognitive Radio: 《Journal of Harbin Institute of Technology(New Series)》2013年第1期1-7,共7页Xin Liu Xiu-Hua Li Rong-Fei Fan Xue-Zhi Tan; Sponored by the National Natural Science Foundation of China ( Grant No. 61071104);the Fundamental Research Funds for the Central Universities( Grant No. HIT. NSRIF. 201149); In order to avoid the interference to the primary user(PU), in this paper Cognitive Radio (CR) periodically senses the presence of PU, and during one period, CR can sense all the sub-channels based on weighed data fus...; 关键词：cognitive radio energy detection cooperative detection weighed data fusion thoughput

Novel Spectrum Allocation Algorithm Based on the Activities of Primary Users for Cognitive Radio Networks: 《Journal of Harbin Institute of Technology(New Series)》2013年第1期57-62,共6页Yao Wang Zhong-Zhao Zhang Lin Ma Jia-Mei Chen; Sponsored by the National Natural Science Foundation and Civil Aviation Administration of China(Grant No.61071104 and 61101122);Science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory(Grant No.ITD-U12004/K1260010);the National Science and Technology Major Project of the Ministry of Science and Technology of China(Grant No.2012ZX03004-003); In traditional cognitive radio (CR) network, most existing graph-based spectrum allocation schemes don't take on-off behavior of primary users (PUs) into consideration. In this paper, a novel spectrum allocation algor...; 关键词：cognitive radio resource allocation activities of primary users fairness.

Joint optimization algorithm of sensing thresholds and cooperative users in cooperative detection: 《Journal of Harbin Institute of Technology(New Series)》2012年第5期31-35,共5页任晶秋张光华刘鑫; Cooperative detection is an effective method to improve the spectrum sensing of Cognitive Radio (CR), and its detection performance can be improved through optimization. An optimization algorithm for cooperative detec...; 关键词：cognitive radio cooperative detection energy detection error detection probability

Signal modeling of the OFDM-based fractional fourier domain communication system: 《Journal of Harbin Institute of Technology(New Series)》2012年第3期10-14,共5页迟永刚张生昱; Sponsored by the Natural Science Foundation of Heilongjiang Province of China(Grant No. F200906); In this paper,a new transmission scheme for Fractional Fourier Domain Transform Communication System(FrFDCS) based on OFDM is proposed,which can be potentially applied in transmitting control information in the cognit...; 关键词：cognitive radio OFDM TDCS FrFDCS

Opportunistic best-relay node selection for cooperative transmission improvement over underlay cognitive radio networks: 《Journal of Harbin Institute of Technology(New Series)》2011年第6期16-21,共6页陈丹纪红李曦; Sponsored by the National Major Science&Technology Project(Grand No.2009ZX03002-014);the National Nature Science Foundation(Grant No.60832009);the Beijing Municipal Natural Science Foundation(Grand No.4102044);the National Natural Science Foundation for Distinguished Young Scholar(Grand No.61001115); In cognitive radio (CR) relay networks,most previous work concentrates on maximizing physical layer quality of service (QoS),e.g.,spectral efficiency and achievable data rate,as relay selection criteria.However,the re...; 关键词：cognitive radio (CR) cooperative transmissions relay selection instantaneous channel state information (ICSI) residual energy

A novel mechanism based on Nash bargaining for primary system game in cognitive radios: 《Journal of Harbin Institute of Technology(New Series)》2011年第6期58-62,共5页刘玉涛 Anna Auguste Anghuwo 谭学治刘帅; Sponsored by the National High Technology Research and Development Program of China(863Program)(Grant No.2008AA12Z305); According to the utility function and spectrum demand of the cognitive users,a novel mechanism based on Nash bargaining for primary system game was proposed under the wireless environment of Rayleigh fading.On the bas...; 关键词：cognitive radio spectrum sharing Nash bargaining proportional fair UTILITY

Research on cooperative detection and multiple access for cognitive radio system: 《Journal of Harbin Institute of Technology(New Series)》2011年第6期86-92,共7页Anna Auguste Anghuwo 刘鑫谭学治; Sponsored by the National Natural Science Foundation of China(Grant No.6107110); As cognitive radio (CR) needs to detect spectrum accurately and utilize the idle spectrum efficiently,a new model of CR is proposed.This model adopts energy detection with auto-adapted threshold and produces spectrum ...; 关键词：cognitive radio energy detection basis function

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