Banca de DEFESA: CARLOS ANTONIO DE LIMA FILHO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : CARLOS ANTONIO DE LIMA FILHO
DATE: 10/02/2026
TIME: 09:00
LOCAL: Remota via Google Meet
TITLE:

Resource Allocation in Open RAN Networks: An Elasticity Approach for Network Slicing

KEY WORDS:

Network slicing; open RAN; 5G; xApp

PAGES: 60
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUBÁREA: Telecomunicações
SPECIALTY: Sistemas de Telecomunicações
SUMMARY:

This master's thesis proposes developing an Open RAN solution for dynamic bandwidth scheduling using network slicing in 5G systems. The proof-of-concept methodology uses a 5G Open RAN network based on the O-RAN Alliance architecture. The study analyzes and implements two resource allocation algorithms in the RAN: Fixed Slice Scheduling (FSS), which employs a fixed allocation policy, and Guaranteed Bandwidth Slice Scheduling (GBSS), which reserves a minimum bandwidth and dynamically allocates a portion of shared bandwidth on demand. The algorithms were used as xApps of the Near-Real-Time RAN Intelligent Controller (near-RT RIC). The investigation of FSS highlights the limitations of its static nature, especially when the offered rate of users varies over time. GBSS, on the other hand, distributes shared bandwidth according to the packet loss behavior of network slices, aiming to maximize the delivery of correct packets. For scenarios with controlled load and time-varying transmission rate demand, the application of GBSS results in low packet loss, surpassing FSS in all tested cases.

COMMITTEE MEMBERS:
Presidente - 1412682 - VICENTE ANGELO DE SOUSA JUNIOR
Interno - 2524053 - ANTONIO LUIZ PEREIRA DE SIQUEIRA CAMPOS
Externo ao Programa - 1699087 - AUGUSTO JOSE VENANCIO NETO - UFRNExterno à Instituição - ÁLVARO AUGUSTO MACHADO DE MEDEIROS - UFJF