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NSF awards $12 million for radio spectrum research
NSF $12 million radio spectrum research
2016/11/4
Today, the National Science Foundation (NSF) announced 11 awards, totaling $12 million, to support activities aimed at enhancing the public's access to the radio frequency spectrum -- the part of the ...
Channel Selection for Rendezvous with High Link Stability in Cognitive Radio Network
Cognitive Radio Networks Channel Selection Problem Rendezvous Problem Link Stability
2016/1/22
Channel selection is a fundamental problem in Cognitive Radio Networks (CRNs). One basic channel assignment problem is ren-dezvous, which investigates how secondary users can establish a connec-tion b...
Deterministic Distributed Rendezvous Algorithms for Multi-Radio Cognitive Radio Networks
Multi-Radio Cognitive Radio Network Rendezvous
2016/1/22
Rendezvous is a fundamental process in constructing Cog-nitive Radio Networks (CRNs), through which the user can communicate with its neighbors by establishing a link on some licensed frequency band (...
Propagation of HF radio waves over northerly paths: measurements,simulation and systems aspects
radio waves measurements simulation
2015/9/14
Large deviations in the direction of arrival of ionospherically propagating radio signals from the Great Circle Path (GCP) have serious implications for the planning and operation of communications
a...
Automatic real-time spectrum sensing using energy detection in software defined radio
Spectrum sensing system radio radio communication system
2014/12/31
The purpose of this graduate project is to design a real-time spectrum sensing system using software defined radio. The uniqueness of software defined radio is the concept of replacing many of the har...
Capacity Optimization for Local and Cooperative Spectrum Sensing in Cognitive Radio Networks
Capacity cognitive radio optimization
2010/2/2
The dynamic spectrum allocation solutions such as
cognitive radio networks have been proposed as a key technology to
exploit the frequency segments that are spectrally underutilized.
Cognitive radi...
Déposition par Pulvé Risation Cathodique Radio Fréquence et Caracté Risation Électronique, Structurale et Optique de Couches Minces du Dioxyde de Titane
solar cells thin films spectroscopy
2010/12/7
Deposited titanium oxide thin films are used as optical protector films for several materials and as energy converters for solar cells. In this work, titanium oxide thin films are deposited on c-Si an...