Results 21 to 30 of about 215,250 (265)

Spectrum Allocation of Cognitive Radio Based on Autonomy Evolutionary Algorithm

open access: yesCybernetics and Information Technologies, 2016
Reasonable and effective allocation of cognitive radio spectrum resource according to user’s requirements is the key task of cognitive radio network. Cognitive radio spectrum allocation problem can be viewed as an optimization problem.
Li Yongcheng, Shen Hai, Wang Manxi
doaj   +1 more source

Cooperative wideband spectrum sensing with multi-bit hard decision in cognitive radio [PDF]

open access: yes, 2013
Cognitive radio offers an increasingly attractive solution to overcome the underutilization problem. A sensor network based cooperative wideband spectrum sensing is proposed in this paper. The purpose of the sensor network is to determine the frequencies
Ammar, M.   +4 more
core   +1 more source

Interference Alignment for Cognitive Radio Communications and Networks: A Survey [PDF]

open access: yes, 2019
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).Interference ...
Abdulkadir, Yusuf   +2 more
core   +2 more sources

Wireless Broadband Opportunities through TVWS for Networking in Rural areas of Africa [PDF]

open access: yesEAI Endorsed Transactions on Industrial Networks and Intelligent Systems, 2015
In this paper, we propose a new approach based on Cognitive Radio technology to address the challenges for ensuring connectivity in remote areas of Africa.
Dramane Ouattara   +3 more
doaj   +3 more sources

A survey on cognitive radio network attack mitigation using machine learning and blockchain

open access: yesEURASIP Journal on Wireless Communications and Networking, 2023
Cognitive radio network is a promising technology to enhance the spectrum utilization and to resolve the spectrum scarcity issues. But the malicious users play havoc with the network during spectrum sensing and demean the network performance.
I. Evelyn Ezhilarasi   +2 more
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

Survey on Cognitive Radio Green Network with Cross-Layer Technology

open access: yesDianxin kexue, 2014
Applications of the cognitive radio technology based on cross-layer in green networks with the aim of saving energy were explored. A variety of key technologies on cognitive radio based on cross-layer protocol in green network were collected and ...
Jiao Wang, Junhui Zhao, Jiajiao Du
doaj   +2 more sources

On the Evaluation of Handover Exchange Schemes Between Two Cognitive Radio Base Stations with and without Buffers [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2018
This article investigates and evaluates a handover exchange scheme between two secondary users (SUs) moving in different directions across the handover region of neighboring cell in a cognitive radio network.
Ebenezer Esenogho   +2 more
doaj   +1 more source

DDH-MAC: a novel dynamic de-centralized hybrid MAC protocol for cognitive radio networks [PDF]

open access: yes, 2011
The radio spectrum (3kHz - 300GHz) has become saturated and proven to be insufficient to address the proliferation of new wireless applications. Cognitive Radio Technology which is an opportunistic network and is equipped with fully programmable wireless
Maple, Carsten   +2 more
core   +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   +1 more source

Home - About - Disclaimer - Privacy