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Design of a Mathematical Model for Spectrum Utilisation in Cognitive Radio

B. S., O. Osunade
2018 International Journal of Computer Applications  
General Terms Wireless communication Keywords Wireless communication, dynamic spectrum management, cognitive radio, IEEE 802.22.  ...  The design is implemented within the scope of IEEE 802.22 research group which describes the coexistence of cognitive radios with TV bands.  ...  In order to improve the efficiency of spectrum, radio systems are allowed to coexist in the same spectrum through dynamic spectrum access (DSA).  ... 
doi:10.5120/ijca2018916436 fatcat:tefbhz425ze6jhyk6hlgsnmsdi

Expansive networks: Exploiting spectrum sharing for capacity boost and 6G vision

Gurkan Gur
2020 Journal of Communications and Networks  
Evidently, future wireless networks need to provide efficient mechanisms to coexist in the licensed and unlicensed bands and operate in expansive mode.  ...  To this end, we elaborate on a key aspect of an expansive network as a concrete example: Spectrum resource at the PHY layer.  ...  Learning-based approaches are instrumental for wireless networks to coexist in a spectrum band especially for scenarios in which the information about the underlying system is either incomplete, e.g.,  ... 
doi:10.23919/jcn.2020.000037 fatcat:3g2ya75vdrdijduseiklrgx7aq

IEEE Standards Supporting Cognitive Radio and Networks, Dynamic Spectrum Access, and Coexistence

Matthew Sherman, Apurva Mody, Ralph Martinez, Christian Rodriguez, Ranga Reddy
2008 IEEE Communications Magazine  
ACKNOWLEDGMENTS The authors would like to thank Steve Shellhammer, Chair of IEEE 802.19, for his helpful interactions regarding this article.  ...  Eventually people realized many of these techniques could be automated, and a second generation of standards resulted, including capabilities such as DFS and PC.  ...  A view of the components that may exist in a cognitive radio system. sents completed standards activities. All the completed standards to date deal with coexistence of one form or another.  ... 
doi:10.1109/mcom.2008.4557045 fatcat:kgjeombyinhdlamdxbnxtcasbi

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  
Since this offers more flexible way to utilize the wireless spectrum than traditional radio technology based on a fixed spectrum access policy, it is thought that the key feature of cognitive radio, i.e  ...  In this paper, we mainly focus on investigating the major issues to be considered with the existing communication protocols and algorithms devised while realizing the cognitive capability into wireless  ...  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

Connectivity Brokerage: From coexistence to collaboration

Arash Parsa, Ali O. Ercan, Pedro Malagon, Fred Burghardt, Jan M. Rabaey, Adam Wolisz
2010 2010 IEEE Radio and Wireless Symposium (RWS)  
Approaches to address this challenge include dynamic spectrum allocation (cognitive radio) and pro-active interference mitigation strategies requiring coordination between heterogeneous networking technologies  ...  The explosive growth in the density of wirelessly connected devices and their traffic load is creating interference and gradually leading to a severe spectrum shortage.  ...  ACKNOWLEDGEMENTS The author(s) acknowledge the support of the Gigascale Systems Research Center (GSRC), part of the Focus Center Research Program.  ... 
doi:10.1109/rws.2010.5434096 fatcat:r2wn43hk6nhtjg3la35jmc7vh4

6G Vision: An Ultra-Flexible Perspective [article]

Ahmet Yazar, Seda Doğan-Tusha, Hüseyin Arslan
2021 arXiv   pre-print
The upcoming sixth generation (6G) communications systems are expected to support an unprecedented variety of applications, pervading every aspect of human life.  ...  It is clearly not possible to fulfill the service requirements without actualizing a plethora of flexible options pertaining to the key enabler technologies themselves.  ...  ACKNOWLEDGEMENT The authors would like to thank Muhammad Sohaib J. Solaija for his valuable comments and suggestions to improve the quality of the paper.  ... 
arXiv:2009.07597v2 fatcat:ipxkdkemkbg27bavg2qkzfced4

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  
On the other hand, the increasing number of wireless multimedia applications leads to a spectrum scarcity.  ...  Cognitive Radio is proposed as a promising technology to solve the imbalance between spectrum scarcity and spectrum underutilization.  ...  Automated Radio Resource Management Practically when wireless network is setup, a wireless engineer spends few weeks tuning the radio parameters to get the best out of a network.  ... 
doi:10.5120/12918-9741 fatcat:rr6hmqjsyrecbc6zsf2qvgfdzm

Sub-GHz LPWAN Network Coexistence, Management and Virtualization: An Overview and Open Research Challenges

Eli De Poorter, Jeroen Hoebeke, Matthias Strobbe, Ingrid Moerman, Steven Latré, Maarten Weyn, Bart Lannoo, Jeroen Famaey
2017 Wireless personal communications  
To remedy this, this paper proposes a conceptual framework to improve the performance of LPWAN networks through in-network optimization, cross-technology coexistence and cooperation and virtualization  ...  Due to the use of sub-GHz radio frequencies (typically 433 or 868 MHz in Europe), a single LPWAN base station has a large coverage area, with a range from 1 up to 50 km.  ...  The UGent GOA "Disposable and biodegradable wireless networks for extreme conditions" project. The H2020 eWINE project under grant agreement number 688116.  ... 
doi:10.1007/s11277-017-4419-5 fatcat:pg7k22eg2nb6nbvgea6e27lao4

6G vision: An ultra-flexible perspective

Huseyin Arslan, Seda Dogan Tusha, Ahmet Yazar
2020 ITU Journal  
The upcoming sixth generation (6G) communications systems are expected to support an unprecedented variety of applications, pervading every aspect of human life.  ...  It is clearly not possible to fulfill the service requirements without actualizing a plethora of flexible options pertaining to the key enabler technologies themselves.  ...  ACKNOWLEDGEMENT The authors would like to thank Muhammad Sohaib J. Solaija for his valuable comments and suggestions to improve the quality of the paper.  ... 
doi:10.52953/ikvy9186 fatcat:aj7pwfq3mrb25pwa7ixbajmv7i

Survey of Related Technologies for Improved Spectrum Efficiency

B.S. Olanrewaju
2012 IOSR Journal of Engineering  
Cognitive Radios in particular have the potentials to substantially improve spectrum efficiency by opportunistically using spectrum.  ...  The development of technologies like 4 th generation (4G) technology, Ultra Wide Band (UWB) techniques, Software-defined Radios (SDRs), and Cognitive Radios (CRs) help to improve the overall utilization  ...  So to further boost the efficiency of CR users, cognitive radio should optimally use the spectrum when primary users' signals are absent.  ... 
doi:10.9790/3021-021122533 fatcat:hpq5bydsmbg3rjst476vab2vye

Research Trends in Multi-standard Device-to-Device Communication in Wearable Wireless Networks [chapter]

Muhammad Mahtab Alam, Dhafer Ben Arbia, Elyes Ben Hamida
2015 Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering  
We review multi-standard and multiple technologies based wearable wireless cognitive system for Device-to-Device (D2D) communication.  ...  Wearable Wireless Networks (WWN) aim to provide attractive alternate for conventional medical care system.  ...  Acknowledgment This publication was made possible by NPRP grant #[6−1508−2−616] from the Qatar National Research Fund (a member of Qatar Foundation).  ... 
doi:10.1007/978-3-319-24540-9_61 fatcat:f4c3h3wuozalvmttyyy4odbp2e

Applications of Intelligent Radio Technologies in Unlicensed Cellular Networks - A Survey

2021 KSII Transactions on Internet and Information Systems  
On the other hand, artificial intelligence (AI) has attracted enormous attention to implement 5G and beyond systems, which is known as Intelligent Radio (IR).  ...  Demands for high-speed wireless data services grow rapidly. It is a big challenge to increasing the network capacity operating on licensed spectrum resources.  ...  Cognitive radio, a clever wireless communication system, which can perceive its neighboring environment (i.e., the external world), and adopt the procedure of understanding-by-building to learn and pick  ... 
doi:10.3837/tiis.2021.07.020 fatcat:uzb3gqtsezcgzehvjige3vgiwq

Progressive simulation-based design: A case study example on software defined radio

Ehsan Azarnasab, Xiaolin Hu, Peiman Amini, Behrouz Farhang-Boroujeny
2008 2008 IEEE International Conference on Automation Science and Engineering  
In this paper we apply this methodology to implement a cognitive radio network on software defined radio, and show the progress from modeling and simulation point of view.  ...  Progressive design, using simulation for cumulative tests, defines a systematic methodology for development of such systems.  ...  The system responds dynamically to the changing environment to avoid active PUs on realtime basis, while continuing the functionality of a wireless radio.  ... 
doi:10.1109/coase.2008.4626494 dblp:conf/case/AzarnasabHAF08 fatcat:romqhchvn5e7rpdna6cm7dld74

Managing the radio spectrum

Christos Politis
2009 IEEE Vehicular Technology Magazine  
A CR is an agile radio technology that autonomously adapts to the radio environment in one or more ways, using contextual or optimization information. For example,  ...  To validate this point, we have selected to discuss cognitive radio (CR) and its role in future spectrum use.  ...  There he managed a number of projects across a wide range of areas including cognitive radio, polite protocols, radar, fixed wireless and mobile technologies.  ... 
doi:10.1109/mvt.2008.931628 fatcat:nebnoao2yzgm5cdamet7sclvgy

Future Is Unlicensed: Private 5G Unlicensed Network for Connecting Industries of Future

Rojeena Bajracharya, Rakesh Shrestha, Haejoon Jung
2020 Sensors  
mechanism, and the multi-domain coexistence approach to overcome the unlicensed/shared band challenges and boost the realization of NR-U technology in mission-critical industrial applications.  ...  New Radio in the Unlicensed band (NR-U) is a new NR Release 16 mode of operation that has the capability to offer the necessary technology for cellular operators to integrate the unlicensed spectrum into  ...  Machine learning (ML) can provide a cognition toolbox to address the related problems.  ... 
doi:10.3390/s20102774 pmid:32414188 pmcid:PMC7285771 fatcat:iedbuxdtwndotfsswlmxflbjxu
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