Realtime Text File Transmission Using Software Defined Radio With High Directional Circular Waveguide Antennas

This article deals with a system design that enables real-time transmission of ASCII text files using software-defined radio (SDR) and a highly directional circular waveguide antenna. The software-defined radio testbed uses the universal software radio peripheral (USRP) and GNU Radio Companion. The key challenge in transmitting ASCII text files is to achieve a high data rate while maintaining precise packet reception. This article deals with applying efficient packet transmission techniques to achieve the reliable transmission of ASCII text files using SDR. The robustness of the proposed approach is experimentally demonstrated utilizing an SDR experimental testbed equipped with circular waveguide antennas with a gain of 9 dBi.