Interactive networked applications require high through- put, low latency, and high reliability from the network to pro- vide a seamless user experience. While meeting these three requirements simultaneously is difficult, there has been an emergence …
Decentralized cellular networks have emerged to increase network accessibility by distributing infrastructure ownership over independent entities. Unlike the centralized setting, these architectures can allow users to connect to any untrusted base …
Summary This work develops a half duplex system operating at 122.88 MSPS and transmitting data generated according to 5G NR standards using a Universal Software Radio Peripheral (USRP). A half duplex system can both transmit and receive but can not do both simultaneously. Instead, the system transmits for a period of time and receives for the remaining. Therefore, the system is designed in three stages- transmitter, receiver and then integration of the two. Once designed, the USRP is expected to work in parallel with the existing Keysight systems used at the Testbed if not replace them. In this work, USRP N321 by Ettus Research is used. The USRP is a software defined radio that uses software as a substitute for components implemented in hardware. The accompanying technical report details the procedures involved in setting up the USRP- the associated software, interfacing and verification of function. This document also discusses the design of a transmitter and receiver using GNU Radio and the associated challenges. The designed systems are tested using a Vector Signal Analyzer (VSA) and Vector Signal Generator (VSG) and data that adheres to the 5G standards is generated using MATLAB.
5G technology is poised to bring about a wave of changes in the near future. An integral step in the process of developing 5G systems is performing extensive simulations to verify the efficacy of algorithms before they are implemented on hardware. …