Results 21 to 30 of about 4,266 (280)

Opportunistic Hybrid Transport Protocol (OHTP) for Cognitive Radio Ad Hoc Sensor Networks

open access: yesSensors, 2015
The inefficient assignment of spectrum for different communications purposes, plus technology enhancements and ever-increasing usage of wireless technology is causing spectrum scarcity.
Yousaf Bin Zikria   +3 more
doaj   +2 more sources

Sustainability Enhancement Multihop Clustering in Cognitive Radio Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2015
A cognitive radio based hybrid data-type clustering (CR-HDC) algorithm is proposed to maximize network energy efficiency of cognitive radio (CR) sensor networks (CRSNs).
Jong-Hong Park   +2 more
doaj   +2 more sources

Estimation of Distribution Algorithm for Resource Allocation in Green Cooperative Cognitive Radio Sensor Networks

open access: yesSensors, 2013
Due to the rapid increase in the usage and demand of wireless sensor networks (WSN), the limited frequency spectrum available for WSN applications will be extremely crowded in the near future.
Alagan Anpalagan   +3 more
doaj   +2 more sources

Advances in Cognitive Radio Sensor Networks [PDF]

open access: yesInternational Journal of Distributed Sensor Networks, 2014
Los avances en la comunicación inalámbrica han cambiado las costumbres y el estilo de vida de las personas hoy en día, y la demanda de comunicación inalámbrica con altas velocidades y conectividad ubicua sigue aumentando. Actualmente, existen varias redes inalámbricas diferentes, por ejemplo, redes celulares y redes inalámbricas de área local, para ...
Hyung Seok Kim   +4 more
openaire   +2 more sources

To Relay or Not to Relay in Cognitive Radio Sensor Networks [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2015
Recent works proposed the relaying at the MAC layer in cognitive radio networks whereby the primary packets are forwarded by the secondary node maintaining an extra queue devoted to the relaying function. However, relaying of primary packets may introduce delays on the secondary packets (called secondary delay) and require additional power budget in ...
Fotis Foukalas, Tamer Khattab
openaire   +4 more sources

Cluster-based scheduling for cognitive radio sensor networks [PDF]

open access: yesJournal of Ambient Intelligence and Humanized Computing, 2018
In this paper, we define a cluster based scheduling algorithm for Cognitive Radio Sensor Networks (CRSNs). To avoid inter-clusters collision, we assign fixed channels only to nodes having one-hop neighbors out of their clusters. We denote these nodes as specific nodes.
Idoudi, Hanen   +3 more
openaire   +2 more sources

A Novel Energy-Efficient Clustering Based Cooperative Spectrum Sensing for Cognitive Radio Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2015
Cognitive radio has been proposed as a promising way to effectively utilize the scarce spectrum resources. A cognitive radio sensor network (CRSN) is a wireless sensor network that is equipped with cognitive radio capability.
Ashish Rauniyar, Soo Young Shin
doaj   +1 more source

Cognitive Wireless Networks Based Spectrum Sensing Strategies: A Comparative Analysis

open access: yesApplied Computational Intelligence and Soft Computing, 2022
Because of numerous dormant application fields, wireless sensor networks (WSNs) have emerged as an important and novel area in radio and mobile computing research.
Anandakumar Haldorai   +3 more
doaj   +1 more source

Network Modeling and Interference Analysis in Pervasive Technology [PDF]

open access: yes, 2012
Pervasive computing aims to create environments where the technology is invisibly integrated into. This vision is realized by means of wireless networks, i.e. cheap and small pervasively distributed devices which communicate wireless.
Ferrero, Renato   +9 more
core   +1 more source

MAC: Protocols for Cognitive Radio Sensor Networks and their Comparision [PDF]

open access: yesInternational Journal of Trend in Scientific Research and Development, 2018
Wireless Sensor Networks WSNs deliver smart communication paradigm which can set up intelligent networks handling all the applications as per the user requirements. The WSNs offer several advantages like flexibility, fault tolerance, low cost and easy deployment.
Anupam Mittal, Geetika Sharma
openaire   +1 more source

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