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Publicações

Publicações por CTM

2025

A Vision-aided Open Radio Access Network for Obstacle-aware Wireless Connectivity

Autores
Simões, C; Coelho, A; Ricardo, M;

Publicação
20th Wireless On-Demand Network Systems and Services Conference, WONS 2025, Hintertux, Austria, January 27-29, 2025

Abstract
High-frequency radio networks, including those operating in the millimeter-wave bands, are sensible to Line-of-Sight (LoS) obstructions. Computer Vision (CV) algorithms can be leveraged to improve network performance by processing and interpreting visual data, enabling obstacle avoidance and ensuring LoS signal propagation. We propose a vision-aided Radio Access Network (RAN) based on the O-RAN architecture and capable of perceiving the surrounding environment. The vision-aided RAN consists of a gNodeB (gNB) equipped with a video camera that employs CV techniques to extract critical environmental information. An xApp is used to collect and process metrics from the RAN and receive data from a Vision Module (VM). This enhances the RAN's ability to perceive its surroundings, leading to better connectivity in challenging environments. © 2025 IFIP.

2025

A Framework to Develop and Validate RL-Based Obstacle-Aware UAV Positioning Algorithms

Autores
Shafafi, K; Ricardo, M; Campos, R;

Publicação
CoRR

Abstract

2025

Autonomous Vision-Aided UAV Positioning for Obstacle-Aware Wireless Connectivity

Autores
Shafafi, K; Ricardo, M; Campos, R;

Publicação
CoRR

Abstract

2025

Joint Optimization of Multi-UAV Deployment and 3D Positioning in Traffic-Aware Aerial Networks

Autores
Shafafi, K; Abdellatif, AA; Ricardo, M; Campos, R;

Publicação
CoRR

Abstract

2025

Modular Design and Experimental Evaluation of 5G Mobile Cell Architectures Based on Overlay and Integrated Models

Autores
Ruela, J; Cojocaru, I; Coelho, A; Campos, R; Ricardo, M;

Publicação
CoRR

Abstract

2025

A Reinforcement Learning Framework for Mobility Control of gNBs in Dynamic Radio Access Networks

Autores
Duarte, P; Coelho, A; Ricardo, M;

Publicação
CoRR

Abstract

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