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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 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...
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 (...
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...
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...
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...
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...

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