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Survey on Cognitive Radio Green Network with Cross-Layer Technology
Published 2014-03-01Subjects: “…cognitive network…”
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Adaptive spectrum sensing algorithm based on cyclostationary spectrum energy
Published 2011-11-01Subjects: “…cognitive network…”
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Power allocation algorithm of full duplex cognitive relay network based on energy harvesting
Published 2020-09-01Subjects: Get full text
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24
Research and application practice of knowledge graph technology system for telecom-operators
Published 2022-08-01Subjects: Get full text
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25
Collision resolution algorithm based on time-series forecasting for cognitive wireless networks
Published 2011-11-01Subjects: “…cognitive networks…”
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26
Interference mitigation for satellite-terrestrial heterogeneous coexistence cognitive MIMO system based on DBF
Published 2014-10-01Subjects: Get full text
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27
Queue stability distributed spectrum access algorithm based on Markov model for cognitive radio network
Published 2014-03-01“…The queue stability of the secondary users in cognitive network was considered.A Markov chain model for the state of users in the cognitive network was constructed and a distributed CSMA algorithm was proposed.The secondary users adjust the parameters of back-off time due to the arrival and service rate to ensure the queue stability.Upper bound of the capacity of secondary users under the collision constrainting to primary user was derived in closed form.If the arrival rate of secondary users is smaller than the upper bound of capacity,queue stability can be ensured by the proposed algorithm.Simulations verified the effectiveness of the algorithm.…”
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28
Communication Network for Sports Activity Monitoring Systems
Published 2021-01-01“…Besides, considering the energy causality limitation of sensor nodes and relay nodes, a collaborative transmission model of wireless body area network based on wireless cognitive network is constructed. And, a power allocation algorithm based on maximum ratio merging and wireless cognitive network is proposed, which puts forward a new idea for the future research of wireless body area network resource allocation.…”
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Joint trade-off optimization algorithm based on cooperative spectrum sensing throughput
Published 2011-11-01“…The achievable data throughput of the cognitive network was modeled to optimize the overhead and performance of the cooperative system thoroughly.Considering the soft data combination decision,the joint trade-off optimization of the local sampling number and cooperative user number was modeled based on the achievable data throughput.The global optimal solution was achieved with inexact line search algorithm,which is based on Armijo rule and lopsided search step technique.Consequently,the validity of the optimization model was verified both by the numerical computation and by Monte-Carlo simulation tests.The joint trade-off optimization of the sampling number and cooperative user number was achieved in cooperative sensing based on the throughput maximizing criterion.…”
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Resource Allocation for Two-Way Relay Network Based on Cognitive Radio
Published 2015-03-01“…The resource allocation issue for sensing-based spectrum opportunistic access and sensing-based spectrum sharing access in two-way relay cognitive network with imperfect spectrum sensing was discussed.Different from the traditional resource allocation methods for two-way relay network,new algorithm jointly considering sensing time and transmission power in secondary system.Under the condition of the sensing time and the transmission power,the maximal throughput of the secondary system can be obtained.To protect the primary user effectively from interference,the average interference power constraint in each hop was considered.The total transmission power constraint of the secondary system is also considered.The proposed algorithms can acquire the optimal sensing time and power allocation under imperfect spectrum sensing for the sensing-based spectrum opportunistic access and sensing-based spectrum sharing access.Finally,the performance of the two schemes was compared and the effectiveness of the proposed algorithm was verified.…”
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Spectrum allocation based on quantum cuckoo search algorithm in cognitive radio network
Published 2016-05-01“…There are discrete optimization problems for spectrum allocation in cognitive wireless network.A novel combinatorial optimization algorithm called quantum cuckoo search algorithm (QCSA)was proposed,which was based on quantum computing and cuckoo search algorithm.The quantum nest was used to represent multiple dimensionality solution for the optimization problem,and the global optimal position was found according to Lévy flights and quantum mutation strategy.In additional,some classical benchmark functions were employed to prove the effectiveness of QCSA,and a spectrum allocation method based on QCSA was proposed for cognitive network.Compared with classical spectrum allocation methods by using different network utility functions,the global optimal solution can be searched so fast.Simulation results show that the proposed spectrum allocation method based on QCSA is better than other traditional methods under different network utility functions.…”
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Thinking through and about anthropomorphic figurines. A cognitive and neuroarchaeological approach to the study of peak sanctuary practices
Published 2024-06-01“…Through this approach, the role of these objects as part of a larger cognitive network, shared by the participants of the peak sanctuaries throughout Crete, is proposed, and the potential socio-political and economic significance of this role is highlighted.…”
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Influence of Personal Preferences on Link Dynamics in Social Networks
Published 2017-01-01“…We identify a behavioral network defined by call and text data, and a cognitive network based on friendship nominations in ego-network surveys. …”
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Reinforcement Learning-Based Routing Protocol to Minimize Channel Switching and Interference for Cognitive Radio Networks
Published 2020-01-01“…Simulations are conducted using Cognitive Radio Cognitive Network simulator based on Network Simulator (NS-2). …”
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Jamming-resilient algorithm for underwater cognitive acoustic networks
Published 2017-08-01“…The channel sharing mechanism in cognitive networks can improve the communication capacity efficiently. …”
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Investigating resting-state functional connectivity changes within procedural memory network across neuropsychiatric disorders using fMRI
Published 2025-01-01“…Abstract Background Cognitive networks impairments are common in neuropsychiatric disorders like Attention Deficit Hyperactivity Disorder (ADHD), bipolar disorder (BD), and schizophrenia (SZ). …”
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Real-Time Communications in Large-Scale Wireless Networks
Published 2008-01-01“…We propose to use large-scale cognitive networking methods to resolve the wireless multihop challenges. …”
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State transition probability based sensing duration optimization algorithm in cognitive radio
Published 2011-01-01“…The sensing duration to use is a trade-off between sensing performance and system efficiencies.The relation-ship between sensing duration and state transition probability was analyzed when the licensed channel stays in the idle and busy states respectively,based on which,a state transition probability prediction based sensing duration optimization algorithm was proposed.The proposed algorithm can use as little sensing duration in each frame as possible to satisfy the sensing performance constraints so as to maximize the energy and transmitting efficiencies of the cognitive networks.…”
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An Analytical Approach Differentiates Between Individual and Collective Cancer Invasion
Published 2011-01-01“…In conclusion, the combination of cognition network technology and Bayesian network analysis provides an insight into morphological variables associated with transition of cancer cells between invasion modes. …”
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Spectrum access scheme of MAC layer for real-time traffic in cognitive radio network
Published 2014-04-01“…Compared with the traditional MAC protocols for cognitive networks, LD-SAS has shorter delay time and slightly better throughput performance when the probability of channel being idle is bigger.…”
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