Theses and Dissertations

ORCID

https://orcid.org/0009-0005-9069-7183

Advisor

Marojevic, Vuk

Committee Member

Jones, Bryan

Committee Member

Diao, Junming

Date of Degree

5-16-2025

Original embargo terms

Embargo 6 months

Document Type

Graduate Thesis - Open Access

Major

Electrical and Computer Engineering

Degree Name

Master of Science (M.S.)

College

James Worth Bagley College of Engineering

Department

Department of Electrical and Computer Engineering

Abstract

The evolution of 5G networks has introduced new opportunities for high-speed, low-latency wireless communication, supporting a wide range of applications from industrial automation to secure data transmission. However, as 5G networks become more complex, ensuring security and maintaining optimal performance present significant challenges. This thesis explores the development of a 5G testbed using Software-Defined Radios (SDRs) and open-source platforms to analyze signal behavior, security implementations, and performance. The testbed, built with the open source srsRAN software library and widely available SDR hardware, serves as a controlled environment for studying 5G communications security features and innovations. To evaluate transmission characteristics, in-phase/quadrature (IQ) samples and key performance indicators such as power distribution, spectral efficiency, and transmission behavior are analyzed using Keysight’s WaveJudge software and visualization features. Through extensive experimentation, this research provides insights into how different security implementations and transmission techniques influence network behavior. The findings contribute to a deeper understanding of secure communication in next-generation wireless networks and offer a flexible framework for testing future 5G security enhancements.

Sponsorship (Optional)

This work was supported in part by NSF and the Office of the Under Secretary of Defense (OUSD) – Research and Engineering, under Grant ITE2326898 the Office of Naval Research under Award No. N00014-23-1-2808, and the National Telecommunications and Information Administration (NTIA) under Award No. 28-60-IF012.

Available for download on Thursday, December 11, 2025

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