SDR-Based Transmitter of Digital Communication System Using USRP and GNU Radio

Abstract

Today, an experimental research on wireless communication protocols is a progressively emerging field of study. Actually, users require in the existing technology a data flow that is at a time high rate and low-cost, as well as high efficiency and flexibility in order to fit the necessarily upgradeable system requirements. Software-defined Radio is a more important modern technology in the communication system. SDR is a radio that allows the software control of different modulation and demodulation schemes. It ensures as well the tuning of any frequency band whether large or narrow, a security function in communications and the wave form required by the new norms evolving over a large range of frequencies. In this article, we are presenting the conception of a wireless communication system using a software radio (SDR). SDR, as associated to real-time signal treatment structures, this signal processing protocol uses USRP as hardware and GNU Radio as software. The system was designed for an FM transmitter adjustable from 88 MHz to 108 MHz, with maximum efficiency and high quality audio signal. The audio file is transmitted to the USRP card using wide band frequency modulation (WBFM).

Design of a Weather Ground Station based on Software Defined Radio

“…While in case of SDR receivers, with same software we can do different applications, because we just need to change the software program alone. Decreasing equipment costs have made SDRs affordable for most institutions (Abid, & Souani., 2018). Software-defined radio (SDR) is a technique for turning a computer into a radio.…”