“Design and implementation of OFDM based cognitive radio system and its analysis”

In the wireless communication field we are dealing with new emerging technologies and applications. Due to large no. of applications we are scarcity of radio spectrum. Thus, spectrum utilization is very important issue nowadays. In order to utilize the radio spectrum and increase the efficiency of the wireless communication system we need to design a compact system. The purpose of our project is to design an OFDM based cognitive radio system and analyze the performance of the system in terms various channel parameter over different fading channels. Initially we are have designed and implemented this system and then by setting different channel environment as well as system parameters we have observed efficiency of the system in terms of bit error rate and other parameters. By varying system parameters and setting the different channel environment we can observe the behavior of the system.