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Multimedia content delivery for remote patient monitoring using cognitive radio networks
2014
2014 Wireless Telecommunications Symposium
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Acknowledgment This work is supported by the LICoRNe project, funded in part by the National Agency for Research in France ANR (Agence Nationale de la Recherche). ...
Adaptation to wireless parameters means in that case, diagnosticallyrelevant selection of the source encoding parameters and the error control methods. ...
E-health multimedia systems have been primarily based on 3G wireless networks [5] . ...
doi:10.1109/wts.2014.6835003
dblp:conf/wts/OuattaraCHK14
fatcat:yeulfro6dzdhjnskndvmblz4la
Hybrid strategy for reliable packet transfer and packet loss reduction in cognitive radio Ad-Hoc Network
2021
International Journal of Advanced Technology and Engineering Exploration
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Cognitive radio ad-hoc network is characterized by frequent routing disruptions introduced due to intermittent spectrum availability. ...
This work adopts multiple strategies of reliable link based selective multi path routing, secondary user caching packets, packet redundancy based recovery and adaptive packet generation based congestion ...
Based on the channel availability information, hops are selected for forwarding. The method assumes known channel availability slots which are not always true in cognitive radio networks. ...
doi:10.19101/ijatee.2021.874446
fatcat:fr6umu3xinfb5k4cbzzqzjtp4e
Learning in vehicular dynamic spectrum access networks: Opportunities and challenges
2011
2011 International Symposium on Intelligent Signal Processing and Communications Systems (ISPACS)
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In particular, we describe an architecture for optimizing the overall performance of vehicular dynamic spectrum access (VDSA) networks. ...
Consequently, this architecture is designed to enable VDSA in a more flexible wireless spectrum environment by leveraging the cognitive radio concept and existing wireless spectrum databases actively being ...
It can be expected that adaptive channel selection will become crucial in future wireless networks. ...
doi:10.1109/ispacs.2011.6146215
dblp:conf/ispacs/ChenVAW11
fatcat:c4ijhkojxfehllymllrzbsem7i
On optimizing vehicular dynamic spectrum access networks: Automation and learning in mobile wireless environments
2011
2011 IEEE Vehicular Networking Conference (VNC)
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Consequently, the proposed architecture is designed to enable VDSA in a more flexible wireless spectrum environment by leveraging the cognitive radio concept and existing wireless spectrum databases actively ...
temporal and spatial channel heterogeneity, and vehicle path prediction techniques are employed in order to enhance channel access in this operating environment. ...
It can be expected that adaptive channel selection will become crucial in future wireless networks. ...
doi:10.1109/vnc.2011.6117122
dblp:conf/vnc/ChenVAW11
fatcat:2fkm2mpwa5horgy4oguqxbydfq
Adaptive Spectrum Opportunity Access in Cognitive Radio Networks
2013
Journal of Networks
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The secondary data delivery time is adapted in different spectrum opportunities through ASOA scheme based on the estimated collision rates in a sophisticated way. ...
This paper presents the Adaptive Spectrum Opportunity Access (ASOA) scheme. The proposed scheme greatly improves spectrum utilization and provides improved QoS for the secondary users. ...
The secondary users are assumed to be static and desire to utilize available licensed channels in an opportunistic manner based on their cognitive functionalities. ...
doi:10.4304/jnw.8.4.747-754
fatcat:xhpz6eaknrhv3mo34zpq3krtci
NS-2 based simulation framework for cognitive radio sensor networks
2016
Wireless networks
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In this paper, we propose a simulation model for cognitive radio sensor networks (CRSNs) which is an attempt to combine the useful properties of wireless sensor networks and cognitive radio networks. ...
Our proposed model considers the limited energy available for wireless sensor nodes that constrain the spectrum sensing process -an unavoidable operation in cognitive radios. ...
Intermittent PR activity Utilize spectrum for short duration of time Short ON and short OFF periods Mixed PR activity To have an un predictable pattern over the spectrum Mixture of multiple activities ...
doi:10.1007/s11276-016-1418-5
fatcat:yqvnqc4bondilml7smb6ansbsa
A survey of spectrum sensing algorithms for cognitive radio applications
2009
IEEE Communications Surveys and Tutorials
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Furthermore, statistical modeling of network traffic and utilization of these models for prediction of primary user behavior is studied. ...
In this paper, a survey of spectrum sensing methodologies for cognitive radio is presented. ...
Optimum sensing durations to search for an available channel and to monitor a used channel are obtained. ...
doi:10.1109/surv.2009.090109
fatcat:lq37fnncovdvnpv556yxwkrgd4
Channel Status Learning for Cooperative Spectrum Sensing in Energy-Restricted Cognitive Radio Networks
2019
IEEE Access
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Since continuous spectrum sensing will greatly reduce the lifetime of a network composed of energy-restricted CR nodes, an accurate method for predicting spectrum occupancy is necessary to improve energy ...
INTRODUCTION Wireless communication requirement in IoT services is rapidly growing, and the ISM spectrum based networks (e.g., Wireless Sensor Networks, Wireless Body Area Networks and Vehicle-to-Vehicle ...
For example, basic HMM-based prediction methods were proposed to predict the next state of channels in [22] , [23] . ...
doi:10.1109/access.2019.2916065
fatcat:rv3finc7dfdw7hos33h4lhayfi
A predictive network resource allocation technique for cognitive wireless networks
2010
2010 4th International Conference on Signal Processing and Communication Systems
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Future wireless networks will allocate network resources based on cooperative techniques. Resource controllers will apply the cognitive principle to find out status of various networks. ...
We propose a predictive resource allocation strategy where we employ adaptive algorithms to predict the network loading. ...
In an auction based approach each channel is advertised with a minimum price and then kept resource open for certain duration so that secondary networks can bid for the resource. ...
doi:10.1109/icspcs.2010.5709685
fatcat:kymbt6nt45h2bjlijejpx7xsgy
Intelligent Wireless Communications Enabled by Cognitive Radio and Machine Learning
[article]
2018
arXiv
pre-print
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Intelligent wireless communications aims at enabling the system to perceive and assess the available resources, to autonomously learn to adapt to the perceived wireless environment, and to reconfigure ...
The perception capability and reconfigurability are the essential features of cognitive radio while modern machine learning techniques project great potential in system adaptation. ...
The proposed method for dynamic channel selection is implemented in IEEE 802.11 wireless networks, which demonstrates that the model can effectively predict the network performance with respect to the ...
arXiv:1710.11240v4
fatcat:elt77cgcxvappbxvspp7evb74u
Probability Density Function Estimation in OFDM Transmitter and Receiver in Radio Cognitive Networks based on Recurrent Neural Network
[article]
2018
arXiv
pre-print
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optimization proposed in OFDM-based cognitive radio network based on probability density function. ...
In this article, spectrum opportunities prediction based on Recurrent Neural Network for bandwidth optimization and reducing the amount of energy by predicting spectrum holes discovery for quality of services ...
In [5] using Bayesian learning for predicting an available channel or not available proposed that learning is considered geometric distribution for simple channel usage pattern. ...
arXiv:1807.07009v1
fatcat:i7f5hmqwlvcx3ipturq26qge54
The Cognitive Ad-hoc Network Spectrum - Routing Selection Method
2013
International Journal of Future Generation Communication and Networking
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Based on cognitive self-organizing network transmission delay larger and larger interference to primary user receiver problem, put forward a method of spectrum joint routing selection, this method is effective ...
At the same time on the cognitive network capacity maximization as the goal, put forward to jointly design spectrum collaborative perception and channel allocation. ...
And then decide the choice of frequency spectrum; Spectrum selection based on the shortest path method, according to the analysis of the estimated time for spectrum of switching and channel connec tion ...
doi:10.14257/ijfgcn.2013.6.6.14
fatcat:hdwjm64zefd5jpupt6nyv6avja
Increased Energy Efficiency via Delay-Tolerant Transmissions in Cognitive Radio Networks
2013
Network Protocols and Algorithms
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We are currently witnessing the emergence of two important trends in wireless networks, namely the increased usage of Internet like applications, many of them which are delay tolerant, and cognitive radio ...
just a few) to reduce the energy consumption in cognitive networks. ...
Network Protocols and Algorithms ISSN 1943-3581 2013, Vol. 5, No. 2 www.macrothink.org/npa ...
doi:10.5296/npa.v5i2.3265
fatcat:qn2orw44gjctrn6lm34somiq6q
Cognitive Learning-Aided Multi-Antenna Communications
[article]
2022
arXiv
pre-print
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This article provides a synopsis of various DL-based methods to impart cognitive behavior to multi-antenna wireless communications for improved robustness and adaptation to the environmental changes while ...
Cognitive communications have emerged as a promising solution to enhance, adapt, and invent new tools and capabilities that transcend conventional wireless networks. ...
For example, during channel estimation, the input is the received array data and the label is the channel matrix (obtained via an analytical method). ...
arXiv:2010.03131v3
fatcat:q6bvn4vqzba6fhbvqhq2q26xqa
Cognitive radio based connectivity management for resilient end-to-end communications in VANETs
2016
Computer Communications
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MOCA benefits from the flexibility and adaptability of CR, which opportunistically accesses the best available licensed channel frequencies. ...
In view of this, we propose MOCA, a M echanism for cOnnectivity management in C ognitive vehiculAr networks, which make use of cognitive radio (CR) technology, to overcome frequent link disruptions and ...
This work was also supported in part by National Natural Science Foundation of China for Young Scholar; Brazilian National Foundations as CNPq, CAPES, Fundação Araucária and FAPESPA. ...
doi:10.1016/j.comcom.2015.12.009
fatcat:vytcttlvg5ejrkopg3ogvyd4ye
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