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On bridging the gap between homogeneous and heterogeneous rendezvous schemes for cognitive radios

Ching-Chan Wu, Shan-Hung Wu
2013 Proceedings of the fourteenth ACM international symposium on Mobile ad hoc networking and computing - MobiHoc '13  
Currently, there is a "gap" between the rendezvous algorithms for homogeneous and heterogeneous cognitive radios-existing homogeneous algorithms incur high delay when applied to heterogeneous radios; while  ...  Rigorous analysis and extensive simulations are conducted and show that ICH is the first rendezvous scheme that guarantees rendezvous for arbitrary mixtures of homogeneous and heterogeneous radios without  ...  It is crucial to have a new rendezvous technique that bridges the gap between homogeneous and heterogeneous CH schemes.  ... 
doi:10.1145/2491288.2491295 dblp:conf/mobihoc/WuW13 fatcat:pvu7xzya5nf7plydexuyendvem

Medium Access Control in Cognitive Radio Networks [chapter]

2016 Cognitive Radio Networks  
Cognitive radio (CR) is seen as one of the enabling technologies for realizing a new regulatory spectrum management paradigm, viz. opportunistic spectrum sharing (OSS).  ...  In a single radio interface, ad hoc CR network, we propose a distributed channel assignment scheme that assigns channels at the granularity of "segments" for minimizing the channel switching overhead.  ...  The cognitive radio (CR) is seen as the key enabling technology for realizing OSS.  ... 
doi:10.1201/ebk1420077759-10 fatcat:a43lex43k5anxlcs6x4n6f3pse

A survey of MAC issues for TV white space access

You Han, Eylem Ekici, Haris Kremo, Onur Altintas
2015 Ad hoc networks  
The opening of TV white space (TVWS) bands for cognitive access is one of the first tangible steps to solve spectrum scarcity problem in current wireless networks.  ...  It also reviews regulatory activities in several countries and worldwide standardization efforts for TVWS access.  ...  The Cognitive Radio (CR) paradigm has emerged as an efficient method to improve spectrum usage and help to address the spectrum scarcity problem.  ... 
doi:10.1016/j.adhoc.2014.11.009 fatcat:2dl4amo5brddbd6bzald2rxirm

Local control of cognitive radio networks

Christian Doerr, Dirk Grunwald, Douglas C. Sicker
2009 Annales des télécommunications  
This technique is built upon the principles of swarm intelligence, as seen in schools of fish and flocks of birds, and allows for efficient and robust coordination of a cognitive radio network in a variety  ...  First, each cognitive radio needs to optimize its internal operation, and second, it needs to derive a configuration that will enable and optimize communication with other nodes in the network.  ...  Interoperability with other cognitive radio algorithms When placed in a later deployment, one cannot assume that there exists only one cognitive radio network and that all nodes are homogenous, i.e., all  ... 
doi:10.1007/s12243-009-0102-5 fatcat:25uwymf4fbgdrlvp7u2mqlfusy

A Survey on Machine Learning-Based Performance Improvement of Wireless Networks: PHY, MAC and Network Layer

Merima Kulin, Tarik Kazaz, Eli De Poorter, Ingrid Moerman
2021 Electronics  
First, the related work and paper contributions are discussed, followed by providing the necessary background on data-driven approaches and machine learning to help non-machine learning experts understand  ...  all layers of the protocol stack: PHY, MAC and network.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/electronics10030318 fatcat:p6jslz26dvfvbpnqzmrpptloim

A survey on Machine Learning-based Performance Improvement of Wireless Networks: PHY, MAC and Network layer [article]

Merima Kulin, Tarik Kazaz, Ingrid Moerman, Eli de Poorter
2020 arXiv   pre-print
First, the related work and paper contributions are discussed, followed by providing the necessary background on data-driven approaches and machine learning for non-machine learning experts to understand  ...  We first categorize these works into: radio analysis, MAC analysis and network prediction approaches, followed by subcategories within each.  ...  Traditional rendezvous mechanism such as Low Power Listening (LPL) and Low Power Probe (LPP) rely on low duty cycling (scheduling the radio of a sensor node between ON and OFF compared to always-ON methods  ... 
arXiv:2001.04561v2 fatcat:kbbvgechmjgwla6noolrf6ds7u

Defense Advanced Research Projects Agency (Darpa) Fiscal Year 2016 Budget Estimates

Department Of Defense Comptroller's Office
2015 Zenodo  
The Defense Advanced Research Projects Agency (DARPA) FY2016 amounted to $2.868 billion in the President's request to support high-risk, high-reward research.  ...  This transient immunity would bridge the time gap between the delivery of a vaccine and the development of a long term protective immune response.  ...  These advances enabled restoration of sensorimotor function through the use of devices programmed to bridge gaps in the injured brain.  ... 
doi:10.5281/zenodo.1215366 fatcat:cqn5tyfixjanzp5x3tgfkpedri

Platforms for Smart Environments and Future Internet Design: A Survey

Antonio M. Alberti, Mateus A. S. Santos, Ricardo Souza, Hirley Dayan L. Silva, Jorge R. Carneiro, Vitor C. Figueiredo, Joel J. P. C. Rodrigues
2019 IEEE Access  
The idea is to determine the degree of alignment among current initiatives for smart environments and the ones emerging from future Internet research.  ...  The proposed revision innovates by employing previous work on future Internet key enablers as parameters for qualitative comparisons.  ...  computing, cognitive radio, among others.  ... 
doi:10.1109/access.2019.2950656 fatcat:kxspcj4rjjaulctzqtankmlpjq

Racemic Mixture [chapter]

Jeffrey Bada
2015 Encyclopedia of Astrobiology  
It is based on studies in physics, chemistry, biology, and medicine.  ...  The stellar motion is measured from the ▶ Doppler effect on the stellar spectral lines.  ...  Publ Astron Soc Aust 22:13-23 Mulkay MJ, Edge DO (1976) Cognitive, technical and social factors in the growth of radio astronomy.  ... 
doi:10.1007/978-3-662-44185-5_1329 fatcat:xge7qo2lpbb4ziijjpp5pn7fre

A 20-Year Community Roadmap for Artificial Intelligence Research in the US [article]

Yolanda Gil, Bart Selman
2019 arXiv   pre-print
for AI research and development over the next two decades.  ...  These are the major recommendations of a recent community effort coordinated by the Computing Community Consortium and the Association for the Advancement of Artificial Intelligence to formulate a Roadmap  ...  The system could identify and help to bridge linguistic gaps between experts and non-experts, including multilingual support.  ... 
arXiv:1908.02624v1 fatcat:jza6i2tzufgeracsou77qukbu4

Development of a Multimedia Learning Package for Map Projections

William Cartwright, Rod Deakin, Carmel McNaught
2000 Cartography  
Under the scheme, 100% assistance was given to six state institutes of educational technology (SIET) and the states/ UTs were assisted for procurement of radio cum cassette players and color TVs.  ...  The evaluation of the project by SAC revealed the need for greater interaction between resource centers and project schools, the need to reduce the time gap between the training of teachers, the installation  ... 
doi:10.1080/00690805.2000.9714110 fatcat:zbct75yndrgxvgz3566mx3zgvy


Dr. P S Aithal, Prof. Amith Menezes
2019 Zenodo  
One Day National Conference  ...  I would also like to acknowledge our thanks to our parents for their valuable support and encouragement during the period of our study.  ...  Acknowledgement We would like to express our gratitude towards our guide Mrs.Shifana Begum, Assistant Professor, Dept. of CSE, Srinivas School of Engineering, Mukka for her support, guidance and encouragement  ... 
doi:10.5281/zenodo.3250779 fatcat:rgrz3gtqhnfolkur7bsi7xyzue

New Developments in Science and Technology - 60th Anniversary Special Issue, Beihang University (BUAA)

2012 Science  
provides cutting-edge research and education in advanced structural and functional materials, nanomaterials, new materials for clean energy, polymers and composites, nonequilibrium fabrication, corrosion  ...  There are 75 full-time teachers in the school, which annually graduates 150 undergraduates, 180 postgraduates, 50 Ph.D.s, and 10 students from abroad.  ...  (C) Comparison of rotor lift coefficients for different gap sizes.  ... 
doi:10.1126/science.338.6104.274-c fatcat:iurk5neuwvh2jgbohwevb5dicy

Final Program

2020 2020 International Conference on Unmanned Aircraft Systems (ICUAS)  
Dear participants and attendees: On behalf of the ICUAS Association Inc., and in my capacity as the President of the Association, it is a privilege, a great pleasure and an honor to welcome you to the  ...  In response to the Call for Papers, we received 327 contributed and invited session papers. This is the highest ever compared to all previous years.  ...  Based on the closed-loop multi-agent system, an eventtriggered mechanism is designed to reduce the information exchange between agents.  ... 
doi:10.1109/icuas48674.2020.9214039 fatcat:7jr6chhfija47kgtwoxqmfmmoe

C2H [chapter]

2015 Encyclopedia of Astrobiology  
The neutral radical, C 3 H (▶ propynylidyne) can exist in both a linear (l-C 3 H) and a cyclic (c-C 3 H) form, and both these neutral species have been detected in interstellar molecular clouds.  ...  The cation C 3 H + is thought to play an important role in gas phase reactions in the ▶ interstellar medium that lead to the formation of small hydrocarbons.  ...  Catalysts can be heterogeneous or homogeneous, depending on whether they exist in the same phase as the substrate.  ... 
doi:10.1007/978-3-662-44185-5_100142 fatcat:bkzmrhdghvhbdh7s3u4aem7aaa
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