国家自然科学基金(61301179)

作品数：7被引量：12H指数：2
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相关作者：刘进高锐李赞李新颖更多>>
相关机构：西安电子科技大学兰州交通大学更多>>
相关期刊：《Chinese Journal of Electronics》《西安交通大学学报》《太赫兹科学与电子信息学报》《Chinese Physics B》更多>>
相关主题：COGNITIVE_RADIO频谱感知随机共振低信噪比认知无线电更多>>
相关领域：电子电信更多>>
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多用户多中继系统下协作NOMA的中断性能被引量：1
《太赫兹科学与电子信息学报》2020年第4期586-594,共9页刘凯 李新颖 郝浩 
国家自然科学基金资助项目(61301179,61661025,61661026)。
在基于非正交多址接入技术(NOMA)的多用户多中继协作中继网络中,为优先满足混叠信号中的时延敏感信息的服务质量(QoS)需求,对功率因子进行了简单分析,进而找到了关于信道增益的解码限制条件。在给定中继的情况下,根据解码限制条件建立...
关键词：非正交多址接入 协作中继 功率分配 用户中继对 中断概率 
Cognitive Frequency Hopping Sequences被引量：3
《Chinese Journal of Electronics》2016年第1期185-191,共7页GUAN Lei LI Zan HAO Benjian SI Jiangbo NING Ben 
supported in part by the National Natural Science Foundation of China(No.61401323,No.61301179,No.61102058);the Foundation of National Key Laboratory of Science and Technology on Communications Anti-Jamming;the Fundamental Research Funds for the Central Universities(No.72124338);the Doctorial Programs Foundation of the Ministry of Education(No.20110203110011)
Since the immutable conventional Frequency hopping(FH) sequence cannot keep high FH communication reliability in complex electromagnetic environment, we propose an algorithm that can generate high-performance Cognitiv...
关键词：Cognitive frequency hopping （CFH） Cognitive frequency hopping sequences （CFHS） Adaptivefrequency slots number Adaptive wide gap. 
Optimal satisfaction degree in energy harvesting cognitive radio networks
《Chinese Physics B》2015年第12期592-599,共8页李赞 刘伯阳 司江勃 周福辉 
Project supported by the National Natural Science Foundation of China(Grant No.61301179);the Doctorial Programs Foundation of the Ministry of Education of China(Grant No.20110203110011);the 111 Project(Grant No.B08038)
A cognitive radio（CR） network with energy harvesting（EH） is considered to improve both spectrum efficiency and energy efficiency. A hidden Markov model（HMM） is used to characterize the imperfect spectrum sensing...
关键词：cognitive radio（CR） energy harvesting（EH） hidden Markov model（HMM） whole satisfaction degree（WSD） 
Improved dichotomous search frequency offset estimator for burst-mode continuous phase modulation
《Chinese Physics B》2015年第11期584-591,共8页翟文超 李赞 司江勃 柏均 
supported by the National Natural Science Foundation of China(Grant No.61301179);the Doctorial Programs Foundation of the Ministry of Education,China(Grant No.20110203110011);the Programme of Introducing Talents of Discipline to Universities,China(Grant No.B08038)
A data-aided technique for cartier frequency offset estimation with continuous phase modulation （CPM） in burst- mode transmission is presented. The proposed technique first exploits a special pilot sequence, or trai...
关键词：frequency offset estimation Cramer-Rao bound dichotomous search continuous phase modulation 
低信噪比下采用广义随机共振的能量检测算法被引量：7
《西安交通大学学报》2015年第6期27-32,59,共7页刘进 李赞 高锐 
国家自然科学基金资助项目(61301179和61401338);国家"863计划"资助项目(2014AA8098080E);陕西省自然科学基金重点资助项目(2012JZ8002)
针对低信噪比下认知无线电中采用能量检测(ED)的频谱感知方法错误概率较大的问题,提出了一种采用广义随机共振的改进的能量检测(IED)算法。该算法首先对接收信号添加一个直流分量,并借助偏移系数确定直流分量的最优幅值,使其与信号中的...
关键词：认知无线电 频谱感知 能量检测 广义随机共振 
A two-stage spectrum sensing scheme based on energy detection and a novel multitaper method被引量：1
《Chinese Physics B》2015年第4期497-506,共10页齐佩汉 李赞 司江勃 熊天意 
Project supported by the National Natural Science Foundation of China(Grant No.61301179);the China Postdoctoral Science Foundation(Grant No.2014M550479);the Doctorial Programs Foundation of the Ministry of Education,China(Grant No.20110203110011)
Wideband spectrum sensing has drawn much attention in recent years since it provides more opportunities to the secondary users. However, wideband spectrum sensing requires a long time and a complex mechanism at the se...
关键词：cognitive radio wideband spectrum sensing multitaper TWO-STAGE 
A robust power spectrum split cancellation-based spectrum sensing method for cognitive radio systems
《Chinese Physics B》2014年第12期533-543,共11页齐佩汉 李赞 司江勃 高锐 
Project supported by the National Natural Science Foundation of China(Grant No.61301179);the Doctorial Program Foundation of the Ministry of Education,China(Grant No.20110203110011);the 111 Project,China(Grant No.B08038)
Spectrum sensing is an essential component to realize the cognitive radio, and the requirement for real-time spectrum sensing in the case of lacking prior information, fading channel, and noise uncertainty, indeed pos...
关键词：spectrum sensing power spectral density noise uncertainty real time 
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