Results 11 to 20 of about 4,266 (280)

Cognitive Radio Wireless Sensor Networks: Applications, Challenges and Research Trends

open access: yesSensors, 2013
A cognitive radio wireless sensor network is one of the candidate areas where cognitive techniques can be used for opportunistic spectrum access. Research in this area is still in its infancy, but it is progressing rapidly.
Gyanendra Prasad Joshi   +2 more
doaj   +2 more sources

A Robust and Energy-Efficient Transport Protocol for Cognitive Radio Sensor Networks

open access: yesSensors, 2014
A cognitive radio sensor network (CRSN) is a wireless sensor network in which sensor nodes are equipped with cognitive radio. CRSNs benefit from cognitive radio capabilities such as dynamic spectrum access and transmission parameters reconfigurability ...
Shelly Salim, Sangman Moh
doaj   +2 more sources

An Energy-Efficient and Compact Clustering Scheme with Temporary Support Nodes for Cognitive Radio Sensor Networks

open access: yesSensors, 2014
A cognitive radio sensor network (CRSN) is a wireless sensor network whose sensor nodes are equipped with cognitive radio capability. Clustering is one of the most challenging issues in CRSNs, as all sensor nodes, including the cluster head, have to use ...
Shelly Salim   +3 more
doaj   +2 more sources

A Review of Cognitive Hybrid Radio Frequency/Visible Light Communication Systems for Wireless Sensor Networks [PDF]

open access: yesSensors, 2023
The development and growth of Wireless Sensor Networks (WSNs) is significantly propelled by advances in Radio Frequency (RF) and Visible Light Communication (VLC) technologies.
Rodrigo Fuchs Miranda   +6 more
doaj   +2 more sources

Sensor Clustering and Sensing Technology for Optimal Throughput of Sensor-Aided Cognitive Radio Networks Supporting Multiple Licensed Channels [PDF]

open access: yesInternational Journal of Distributed Sensor Networks, 2015
In cognitive radio networks, secondary users may not sense licensed channels efficiently due to problems of fading channel, shadowing, unfamiliar environment, and so forth.
Thanh-Tung Nguyen, Insoo Koo
doaj   +2 more sources

Energy-Efficient Cognitive Radio Sensor Networks: Parametric and Convex Transformations

open access: yesSensors, 2013
Designing energy-efficient cognitive radio sensor networks is important to intelligently use battery energy and to maximize the sensor network life. In this paper, the problem of determining the power allocation that maximizes the energy-efficiency of ...
Alagan Anpalagan   +4 more
doaj   +2 more sources

Cognitive Radio Networks for Internet of Things and Wireless Sensor Networks [PDF]

open access: yesSensors, 2020
Recent innovation, growth, and deployment of internet of things (IoT) networks are changing the daily life of people. 5G networks are widely deployed around the world, and they are important for continuous growth of IoT. The next generation cellular networks and wireless sensor networks (WSN) make the road to the target of the next generation IoT ...
Heejung Yu, Yousaf Bin Zikria
openaire   +4 more sources

A DYNAMIC SPECTRUM ACCESS OPTIMIZATION MODEL FOR COGNITIVE RADIO WIRELESS SENSOR NETWORK [PDF]

open access: yesICTACT Journal on Communication Technology, 2017
The availability of low cost and tiny sensor devices have resulted in increased adoption of wireless sensor network (WSN) in various industries and organization. The WSN is expected to play a significant role in future internet based application services.
T V Saroja   +2 more
doaj   +2 more sources

Energy-Efficient Channel Handoff for Sensor Network-Assisted Cognitive Radio Network

open access: yesSensors, 2015
The visiting and less-privileged status of the secondary users (SUs) in a cognitive radio network obligates them to release the occupied channel instantly when it is reclaimed by the primary user.
Muhammad Usman   +3 more
doaj   +2 more sources

A NEW SPECTRUM AND ENERGY AWARE ROUTING PROTOCOL IN COGNITIVE RADIO SENSOR NETWORK

open access: yesInternational Islamic University Malaysia Engineering Journal, 2018
: Cognitive radio sensor network (CRSN) is a new generation of communication systems that wants to solve the overcrowded spectrum utilization of the unlicensed bands.
Sayyed Majid Mazinani, Sara Moshtaghi
doaj   +3 more sources

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