A reconfigurable Filtenna for Cognitive Radio Application

Reconfigurable RF CMOS Circuit for Cognitive Radio

Cognitive radio and/or SDR (Software Defined Radio) inherently requires multi-band and multi standard wireless circuit. The circuit is implemented based on Si CMOS technology. In this article, the recent progress of Si RF CMOS is described and the reconfigurable RF CMOS circuit which was proposed by the authors is introduced. At the present and in the future, several kind of Si CMOS technology ...

Reconfigurable Microstrip Antennas for Cognitive Radio

Cognitive Radio on a Reconfigurable MPSoC Platform

Due to the explosive growth of wireless communication, the demands for radio spectrum are rapidly increasing. It is very difficult to accommodate new wireless services under the current spectrum allocation scheme. On the other hand, the allocated spectrum is not efficiently utilized. Cognitive Radio is proposed as a technology to solve the imbalance between spectrum scarcity and spectrum under-...

Cognitive Radio on a reconfigurable platform

This report was made as part of the MSc project of Karel Walters, which started February 2007 and finalized in August the same year. During this project a specific sparse FFT, transform decomposition, has been implemented on the Montium. This has been done as part of the development of an OFDM receiver for Cognitive radio. Within cognitive radio certain parts of the frequency spectrum are used....

Dynamically Reconfigurable FFTs for Cognitive Radio on a Multiprocessor Platform

Multiprocessor platforms have been proposed as an enabling technology for Cognitive Radio. In this paper, we explore various FFT implementations on a multiprocessor prototype platform as building components for OFDM based Cognitive Radio. The results show that our FFT implementations on the multiprocessor platform are fast and energy efficient. Moreover, the FFT implementations can be dynamical...