Filters








523 Hits in 7.8 sec

Issues in Realization of Cognitive Radio Sensor Networks

Prasain Prakash, Seong-Ro Lee, Sun-Kok Noh, Dong-You Choi
2014 International Journal of Control and Automation  
In cognitive radio sensor networks (CRSNs), obtaining the information about spectrum holes on channel, negotiating among primary users and secondary users for spectrum allocation, synchronizing transmission  ...  Recently, significant growth in the applications of the wireless sensor networks (WSNs) operating in unlicensed spectrum bands has been made.  ...  A typical cognitive sensor network (CRSN) architecture A wireless sensor network (WSN) composed of sensor nodes equipped with cognitive radio is called cognitive radio sensor network (CRSN).  ... 
doi:10.14257/ijca.2014.7.1.12 fatcat:p7m7ehh54bdkjeb65kfvnxcube

Spectrum Utilization of Cognitive Radio in Industrial Wireless Sensor Networks - A Review [chapter]

Mingjia Yin, Kang Li, Min Zheng
2018 Communications in Computer and Information Science  
The increasing demand for intelligent control and automation in industry requires better use of the radio spectrum due to the use of industrial wireless sensor networks (IWSNs).  ...  Various sensing schemes and the challenges associated for the cognitive radio are reviewed.  ...  This work was financially supported by UK EPSRC under the Optimising Energy Management in Industry -'OPTEMIN' project EP/P0046  ... 
doi:10.1007/978-981-13-2384-3_39 fatcat:oxj66uk4wbaergjaj6zzdmlyse

A Systematic Review on Cognitive Radio in Low Power Wide Area Network for Industrial IoT Applications

Nahla Nurelmadina, Mohammad Kamrul Hasan, Imran Memon, Rashid A. Saeed, Khairul Akram Zainol Ariffin, Elmustafa Sayed Ali, Rania A. Mokhtar, Shayla Islam, Eklas Hossain, Md. Arif Hassan
2021 Sustainability  
With the systematic literature assessment approach, the effects displayed on the cognitive radio in LPWAN can significantly revolute the commercial IIoT.  ...  The progress of IIoT communications, mainly based on cognitive radio (CR), has been guided to the robust network connectivity.  ...  Within the cognitive radio utility in such coexistence architecture, wireless/IIoT can be considered as a primary user (pu) and U-LTE because of the secondary consumer (su).  ... 
doi:10.3390/su13010338 fatcat:rcgudnh32vhkhn4kb652d4mspm

Energy-Aware Approaches in Cognitive Radio Sensor Networks

Karel Toledo de la Garza
2020 Telemática  
Wireless Sensor Networks (WSN) constitute a new application field that has attracted great interest among researchers in recent years [1].  ...  To overcome this issue, Mitola [2] has introduced the concept of Cognitive Radio (CR) which empowers nodes by increasing the radio unit's awareness of its environment.  ...  COGNITIVE RADIO IN WIRELESS SENSOR NETWORKS Wireless Sensor Networks (WSN) constitute a new application field that has attracted great interest among researchers in recent years [1] .  ... 
doaj:ebe49abaea8f44c7a797e7016fe43c87 fatcat:xwqnzj236zaznlymtygtprvqoq

Quality and Availability of spectrum based routing for Cognitive radio enabled IoT networks

MK Kaushik, Y Yoganandam, S K Sahoo
2018 Journal of Communications Software and Systems  
Spectrum scarcity is the issue to be addressed in networking within IoT. Cognitive radio is the technology which addresses the problem of spectrum scarcity in an efficient way.  ...  To achieve ON-demand IoT solutions and interference free communications cognitive radio enabled IoT devices will become an effective platform for many applications.  ...  To have an efficient usage of spectrum cognitive radio has been introduced [5] - [8] . In cognitive radio networks (CRNs) primary users and secondary users coexist to transfer their data.  ... 
doi:10.24138/jcomss.v14i3.557 fatcat:5zrk4tyvjbfmxenufytnlquyy4

Cognitive Model Selections in Co-existing Operation of Wireless Sensor Networks

Vasanth Iyer, S. Sitharama Iyengar, Garmiela Rama Murthy, N. Parameswaran, Vir Phoha, Mandalika B. Srinivas
2010 2010 Second International Conference on Computational Intelligence, Modelling and Simulation  
In this paper, we describe the cognitive radios sharing the spectrum with licensed users and its effects on operational coexistence with unlicensed users.  ...  For the general case the covariance matrix for blind source separation, we use ICA de-correlation methods and show that cognitive radios can efficiently identify users in complex situations.  ...  We like to study the performance of deploying for Wireless Sensor Networks which uses the ISM band using IEEE 802.15.4 protocol in context of Cognitive networks.  ... 
doi:10.1109/cimsim.2010.48 fatcat:h32akrponjgwzbtqb6ckgffyry

Cognitive Radio: State of Research Domain in Next Generation Wireless Networks - A Critical Analysis

Jai SukhPaulSingh, Jasvir Singh, A. S. Kang
2013 International Journal of Computer Applications  
Cognitive Radio (CR) is a comparatively new technology in which problems like underutilization of spectrum and spectrum scarcity is solved based on the revolutionary ideas.  ...  In Cognitive Radio, spectrum sensing is done in order to locate the unused spectrum segments.  ...  In Cognitive Radio Networks, it will access the available channel in such a way so that it can maintain minimum access and end-to-end communication delay for effective real-time surveillance applications  ... 
doi:10.5120/12918-9741 fatcat:rr6hmqjsyrecbc6zsf2qvgfdzm

Spectrum Sensing Techniques in Cognitive Radio Networks: A Survey

Mansi Subhedar, Gajanan Birajdar
2011 International Journal of Next-Generation Networks  
The growing demand of wireless applications has put a lot of constraints on the usage of available radio spectrum which is limited and precious resource.  ...  The challenges and issues involved in implementation of spectrum sensing techniques are discussed in detail giving comparative study of various methodologies.  ...  Cognitive radios are designed in order to provide highly reliable communication for all users of the network, wherever and whenever needed and to facilitate effective utilization of the radio spectrum.  ... 
doi:10.5121/ijngn.2011.3203 fatcat:cji6crm6wndl5cgqzsqmoyoyum

Toward secure cognitive communications in wireless networks

Tingting Jiang, Tongtong Li, Jian Ren
2012 IEEE wireless communications  
This article is devoted to the fundamental study of cognitive communications in wireless networks after analyzing the limitations in today's cognitive radios.  ...  Her research area is in wireless security, with a current focus on security in cognitive radio networks.  ... 
doi:10.1109/mwc.2012.6272427 fatcat:cokqnkni5naj5pq6dmmconru6q

Coexistence with Primary Users of Different Scales

Shridhar Mubaraq Mishra, Rahul Tandra, Anant Sahai
2007 2007 2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks  
In this scenario, we need to decouple sensing from admission control -a sensor network is required to perform the sensing.  ...  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 transmission power.  ...  Fading and path-loss are not the only inaccurate parts of a wireless channel model.  ... 
doi:10.1109/dyspan.2007.28 fatcat:wat7kdvxkfaihl5lzfjr7rl6yy

Energy Efficient Cognitive Radio Spectrum Sensing for 5G Networks – A Survey

Suriya Murugan, M. Sumithra
2018 EAI Endorsed Transactions on Energy Web  
As the revolution of spectrum and its standards is progressing towards 5G networks and beyond, there is a rapid innovation in design of 5G compatible gadgets in order to incorporate evolving wireless spectrum  ...  CONCLUSION In this paper, energy efficient spectrum sensing schemes and challenges of 5G networks are explored and this review will assist any researcher/service provider/mobile communication sector to  ...  High frequency wireless communication above 10 GHz causes high network power and wide transmission bandwidth in dense deployments.  ... 
doi:10.4108/eai.29-3-2021.169169 fatcat:6wlwlyd5iza7nh5hssmfeqqace

Coexistence Management in Wireless Networks- A survey

Ayesha Hasan, Bilal Muhammad Khan
2022 IEEE Access  
For effective spectrum utilization and optimum performance of existing wireless networks and for the realization of new wireless networks, coexistence management of the wireless spectrum is the key to  ...  The rapid proliferation of wireless networks poses a great challenge of effective coexistence management amongst a plethora of wireless communication protocol users that are co-located and contending for  ...  In [114] , Cognitive radio Adhoc networks (CRAHNs) and Primary Users (PUs) coexistence is discussed.  ... 
doi:10.1109/access.2022.3165223 fatcat:oqikf5fnojfdhldfrhbtriam34

NeXt generation/dynamic spectrum access/cognitive radio wireless networks: A survey

Ian F. Akyildiz, Won-Yeol Lee, Mehmet C. Vuran, Shantidev Mohanty
2006 Computer Networks  
More specifically, a brief overview of the cognitive radio technology is provided and the xG network architecture is introduced.  ...  This new networking paradigm is referred to as NeXt Generation (xG) Networks as well as Dynamic Spectrum Access (DSA) and cognitive radio networks. The term xG networks is used throughout the paper.  ...  Cognitive mesh network: Wireless mesh networks are emerging as a cost-effective technology for providing broadband connectivity [4] .  ... 
doi:10.1016/j.comnet.2006.05.001 fatcat:qnrfzg2slvcwzedf4caqocjl4u

Green Cellular Networks: A Survey, Some Research Issues and Challenges [article]

Ziaul Hasan, Hamidreza Boostanimehr, Vijay K. Bhargava
2011 arXiv   pre-print
Since cognitive radio and cooperative relaying are undisputed future technologies in this regard, we propose a research vision to make these technologies more energy efficient.  ...  In this article, we present a brief survey of methods to improve the power efficiency of cellular networks, explore some research issues and challenges and suggest some techniques to enable an energy efficient  ...  The performance of cognitive radio sensing system is drastically impaired, when various wireless channels e.g., detecting, reporting, and inter-user channels have uncertainty [94] .  ... 
arXiv:1108.5493v3 fatcat:j3n4lvgydvgnxi35r62azrpuu4

Second Quarter 2012, IEEE Communications Surveys & Tutorials

Ekram Hossain
2012 IEEE Communications Surveys and Tutorials  
, security in cognitive radio networks, design of multiple-input multiple-output (MIMO)based wireless networks, scalability and speed of convergence of routing protocols for the Internet, multihoming of  ...  In wireless and mobile ad-hoc networks (MANETs), directional antennas can offer higher gains in terms of spectral frequency reuse, power efficiency and transmission range.  ...  In the paper titled "Improving the Reliability of Wireless Networks Using Cognitive Radios" by Arash Azarfar, Jean-François Frigon, and Brunilde Sansò, the authors discuss the reliability issues in wireless  ... 
doi:10.1109/surv.2012.042412.00000 fatcat:7fwzkbm5t5crjkcokacrs5t3li
« Previous Showing results 1 — 15 out of 523 results