Dynamic partial reconfigurable adaptive transceiver for OFDM based cognitive radio

In this paper, we present the implementation and benefits of using dynamic partial reconfigurable adaptive transceiver built for OFDM based Cognitive radio. Determining the appropriate radio communication parameter for a given dynamic channel environment is the primary feature of cognitive radio systems and they are further challenged due to the peak power effect that results from the vectorial addition of the voltage waveforms of each individual carrier. So, we have to select the optimum modulation scheme to get low value of PAPR and to minimize the bit error rate. This paper has undertaken a simulation of a basic transmitter-receiver in a cognitive radio system, and the configuration controller is a look up table based , will learn about the channel environment and be able to provide the appropriate modulation which should be used for the current scenario by taking the expected signal-to-noise ratio (in dB) as input of the transmission.