Main Article Content
Abstract
The requirement for transmission systems which use software and hardware hybrid arrangement, recognized as Software Defined Radio (SDR), rises because of restricted channel capacity in wireless communication.The focus of this paper is to understand the basic methods for real time file transmission in an open source, flexible and platform of low cost – Universal Software Radio Peripheral (USRP) along with GNU radio.SDR is a technology in which software is changed without varying the implementation of essential hardware aspect used in various communication applications. The GNU (not UNIX) Radio along with USRP has a low cost, fast processing ability of the platform called as SDR. It is a freewareeasily available source software supporting SDR platform and USRP acts as the hardware for GNU Radio. The main focus of this paper is on the implementation of PSK modulator & demodulator and evaluates the working & results of a file transfer using PSK modulation technique. The real time file signal transmission and reception is performed using USRP and GNU Radio.