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Channel allocation under uncertain primary users for delay sensitive secondary users
2012 IEEE Wireless Communications and Networking Conference (WCNC), 2012For reducing the channel switching frequency due to uncertain and frequent primary users' interruptions, we design a nonparametric channel allocation algorithm which can effectively manage the spectrum resources in distributed cognitive radio networks and serve for delay-sensitive data traffics.
Guanzhe Zhao +4 more
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Capacity Improvement for Cell-Edge Primary User with the Cooperation of the Secondary User in DAS
2011 IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011Distributed antenna system (DAS) can improve the spectral efficiency of the cellular system, especially at the cell edge. In the paper, we consider the cognitive radio technique to further improve the cell edge performance of the DAS. We consider the following scenario: multiple secondary users (SUs) share the same spectrum with the primary user (PU ...
Liping Huang +2 more
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Coexistence with Primary Users of Different Scales
2007 2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, 2007Opportunistic radio systems aim to exploit 'spectrum holes' by finding bands and transmission characteristics that will not cause harmful interference to the primary users of that band. This paper explores whether it is harder/easier to peacefully coexist with primary systems that operate at different scales in terms of their coverage area and ...
Shridhar Mubaraq Mishra +2 more
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Impact of Cognitive Communications on the Performance of the Primary Users
Wireless Personal Communications, 2012This article investigates how the performance of the primary user is affected by the presence of a spectrum-sharing cognitive user. The performance under both cooperative and non-cooperative cognitive schemes is considered. Primary user's transmission rate, average channel capacity, and average bit error rate are considered as the performance measures.
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Evaluating user involvement in primary healthcare
International Journal of Healthcare Technology and Management, 2003Current health policies, both in the UK and internationally, call for a shift from secondary to primary healthcare, and for increased involvement of service users and communities in decisions about their own care and about the way in which health services are provided.
Judith Allsop, Ann Taket
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2018
The predictive analysis for the spectral decision with automatic Learning is a task that is currently challenging. Some automatic Learning techniques are shown in order to predict the presence or absence of a primary user (PU) in Cognitive Radio. Four machine learning methods are examined including the K-nearest neighbors (KNN), the support vector ...
Deisy Dayana Zambrano Soto +2 more
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The predictive analysis for the spectral decision with automatic Learning is a task that is currently challenging. Some automatic Learning techniques are shown in order to predict the presence or absence of a primary user (PU) in Cognitive Radio. Four machine learning methods are examined including the K-nearest neighbors (KNN), the support vector ...
Deisy Dayana Zambrano Soto +2 more
openaire +1 more source
Estimation of the Primary User's Beam Width Using Cooperative Secondary Users
2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall), 2021Zeinab Kteish +4 more
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User Involvement in Primary Care
Mental Health Review Journal, 1996Roland, M. +8 more
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Primary health care: Definitions, users and uses
Health Care Analysis, 1998L L, Pedersen, D, Wilkin
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Spectrum Sensing Method in Multi-primary Users Environment
Advances in Intelligent Systems and Computing, 2021Zhijun Gao, Gao Zhijun
exaly