Cookies Policy
The website need some cookies and similar means to function. If you permit us, we will use those means to collect data on your visits for aggregated statistics to improve our service. Find out More
Accept Reject
  • Menu
Publications

Publications by CTM

2025

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

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

Publication
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

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

Publication
CoRR

Abstract

2025

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

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

Publication
CoRR

Abstract

2025

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

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

Publication
CoRR

Abstract

2025

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

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

Publication
CoRR

Abstract

2025

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

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

Publication
CoRR

Abstract

  • 3
  • 384