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Sobre

Sobre

Filipe Borges Teixeira é mestre em Engenharia Electrototécnica e de Computadores pela Universidade do Porto desde 2010, onde é atualmente doutorando do Programa Doutoral em Telecomunicações na mesma Universidade. Desde 2010 tem participado em vários projetos nacionais e internacionais de I&D. As suas áreas de investigação incluem redes sem fios subaquáticas e marítimas, bem como redes sem fios emalhadas. É também professor convidado na Faculdade de Engenharia da Universidade do Porto, na área de redes e serviços.

Tópicos
de interesse
Detalhes

Detalhes

  • Nome

    Filipe Borges Teixeira
  • Cargo

    Investigador
  • Desde

    22 fevereiro 2010
005
Publicações

2022

A Flexible Simulation Platform for Multimodal Underwater Wireless Communications using ns-3

Autores
Loureiro, JP; Teixeira, FB; Campos, R;

Publicação
2022 OCEANS HAMPTON ROADS

Abstract
In the last few decades, there has been a growing interest in exploring the sea. The activities of the so-called blue economy can go from applications such as offshore maritime wind farms to ocean environment monitoring, which are supported by sensed platforms such Autonomous Surface Vehicles (ASVs) and Autonomous Underwater Vehicles (AUVs) that require the use of reliable underwater communications. Currently, there is no suitable solution that is able to combine long-range and broadband underwater communications. The integration of different technologies, namely acoustics, RF, and optical on a multimodal approach, has been considered a suitable solution to overcome the limitations caused by the water propagation medium. Since missions at the ocean are usually expensive and demand large human and technological resources, it is important to have accurate simulation platforms for these multimodal underwater wireless networks. This paper presents the first version of a novel simulation framework - MultiUWSim (Beta) -, built upon ns-3, which integrates multiple communications technologies (RF, acoustics and optical). The current version of the simulation platform offers the possibility of simulating acoustic-based and radio-based physical wireless interfaces in a single node in a ns-3 simulation environment, enabling fully-customizable underwater network simulations.

2021

A Novel Simulation Platform for Underwater Data Muling Communications Using Autonomous Underwater Vehicles

Autores
Teixeira, FB; Ferreira, BM; Moreira, N; Abreu, N; Villa, M; Loureiro, JP; Cruz, NA; Alves, JC; Ricardo, M; Campos, R;

Publicação
COMPUTERS

Abstract
Autonomous Underwater Vehicles (AUVs) are seen as a safe and cost-effective platforms for performing a myriad of underwater missions. These vehicles are equipped with multiple sensors which, combined with their long endurance, can produce large amounts of data, especially when used for video capturing. These data need to be transferred to the surface to be processed and analyzed. When considering deep sea operations, where surfacing before the end of the mission may be unpractical, the communication is limited to low bitrate acoustic communications, which make unfeasible the timely transmission of large amounts of data unfeasible. The usage of AUVs as data mules is an alternative communications solution. Data mules can be used to establish a broadband data link by combining short-range, high bitrate communications (e.g., RF and wireless optical) with a Delay Tolerant Network approach. This paper presents an enhanced version of UDMSim, a novel simulation platform for data muling communications. UDMSim is built upon a new realistic AUV Motion and Localization (AML) simulator and Network Simulator 3 (ns-3). It can simulate the position of the data mules, including localization errors, realistic position control adjustments, the received signal, the realistic throughput adjustments, and connection losses due to the fast SNR change observed underwater. The enhanced version includes a more realistic AML simulator and the antenna radiation patterns to help evaluating the design and relative placement of underwater antennas. The results obtained using UDMSim show a good match with the experimental results achieved using an underwater testbed. UDMSim is made available to the community to support easy and faster evaluation of underwater data muling oriented communications solutions and to enable offline replication of real world experiments.

2021

Adaptive and Reliable Underwater Wireless Video Streaming Using Data Muling

Autores
Loureiro, JP; Teixeira, FB; Campos, R;

Publicação
OCEANS 2021: San Diego – Porto

Abstract

2020

Height Optimization in Aerial Networks for Enhanced Broadband Communications at Sea

Autores
Teixeira, FB; Campos, R; Ricardo, M;

Publicação
IEEE ACCESS

Abstract
The Blue Economy has been growing in sectors such as offshore renewable energy, aquaculture, marine biotechnology, and deep sea mining. However, suitable wireless and mobile communications are lacking offshore. On the one hand, there is no coverage from terrestrial networks; on the other hand, satellite communications are still narrowband and expensive. Recently, the use of multi-hop airborne communications has been proposed to extend the coverage from terrestrial networks offshore but the communications range of these solutions is highly dependent on the height of the communications nodes. In this paper, we study the RF signal propagation in the maritime environment when the height of the receiver is changed and propose a position control approach for airborne multi-hop networks that maximizes the network capacity by taking full advantage of the signal reflections on the sea surface. The results obtained show that the proposed approach can provide lower propagation losses and higher network throughputs than random or fixed height approaches.

2020

UDMSim: A Simulation Platform for Underwater Data Muling Communications

Autores
Teixeira, FB; Moreira, N; Abreu, N; Ferreira, B; Ricardo, M; Campos, R;

Publicação
2020 16TH INTERNATIONAL CONFERENCE ON WIRELESS AND MOBILE COMPUTING, NETWORKING AND COMMUNICATIONS (WIMOB)

Abstract
The use of Autonomous Underwater Vehicles (AUVs) is increasingly seen as a cost-effective way to carry out underwater missions. Due to their long endurance and set of sensors onboard, AUVs may collect large amounts of data, in the order of Gbytes, which need to be transferred to shore. State of the art wireless technologies suffer either from low bitrates or limited range. Since surfacing may be unpractical, especially for deep sea operations, long-range underwater data transfer is limited to the use of low bitrate acoustic communications, precluding the timely transmission of large amounts of data. The use of data mules combined with short-range, high bitrate RF or optical communications has been proposed as a solution to overcome the problem. In this paper we describe the implementation and validation of UDMSim, a simulation platform for underwater data muling oriented systems that combines an AUV simulator and the Network Simulator 3 (ns-3). The results presented in this paper show a good match between UDMSim, a theoretical model, and the experimental results obtained by using an underwater testbed when no localization errors exist. When these errors are present, the simulator is able to reproduce the navigation of AUVs that act as data mules, adjust the throughput, and simulate the signal and connection losses that the theoretical model can not predict, but that will occur in reality. UDMSim is made available to the community to support easy and faster evaluation of data muling oriented underwater communications solutions, and enable offline replication of real world experiments.

Teses
supervisionadas

2021

Acoustic Networking for Controlling Underwater Data Mules

Autor
Mariam Ahmed Osman Ahmed Mohamed

Instituição
UP-FEUP

2020

High Definition Wireless Video Streaming using Underwater Data Mules

Autor
João Pedro Teixeira Loureiro

Instituição
UP-FEUP

2019

Data Muling for Broadband and Long Range Wireless Underwater Communications

Autor
Nuno Francisco Monteiro de Barros Moreira

Instituição
UP-FEUP

2017

Wireless Underwater Broadband and Long Range Communications using Underwater Drones as Data Mules

Autor
Leonel Gaspar da Costa Soares

Instituição
UP-FEUP

2015

Evaluation of IEEE 802.11a/g/p Transceiver for SDR

Autor
José Pedro Pereira dos Santos

Instituição
UP-FEUP