Detalhes
Nome
José RuelaCluster
Redes de Sistemas InteligentesCargo
Investigador AfiliadoDesde
01 janeiro 1985
Nacionalidade
PortugalCentro
Centro de Telecomunicações e MultimédiaContactos
+351222094299
jose.ruela@inesctec.pt
2022
Autores
Queiros, R; Almeida, EN; Fontes, H; Ruela, J; Campos, R;
Publicação
2022 27TH IEEE SYMPOSIUM ON COMPUTERS AND COMMUNICATIONS (IEEE ISCC 2022)
Abstract
2021
Autores
Almeida, EN; Coelho, A; Ruela, J; Campos, R; Ricardo, M;
Publicação
AD HOC NETWORKS
Abstract
2021
Autores
Lamela, V; Fontes, H; Ruela, J; Ricardo, M; Campos, R;
Publicação
WNS3 2021: 2021 Workshop on ns-3, Virtual Event, USA
Abstract
Today, wireless networks are operating in increasingly complex environments, impacting the evaluation and validation of new networking solutions. Simulation, although fully controllable and easily reproducible, depends on simplified physical layer and channel models, which often produce optimistic results. Experimentation is also influenced by external random phenomena and limited testbed scale and availability, resulting in hardly repeatable and reproducible results. Previously, we have proposed the Trace-based Simulation (TS) approach to address the problem. TS uses traces of radio link quality and position of nodes to accurately reproduce past experiments in ns-3. Yet, in its current version, TS is not compatible with scenarios where Multiple-In-Multiple-Out (MIMO) is used. This is especially relevant since ns-3 assumes perfectly independent MIMO radio streams. In this paper, we introduce the Trace-based Wi-Fi Station Manager Model, which is capable of reproducing the Rate Adaptation of past Wi-Fi experiments, including the number of effective radio streams used. To validate the proposed model, the network throughput was measured in different experiments performed in the w-iLab.t testbed, considering Single-In-Single-Out (SISO) and MIMO operation using IEEE 802.11a/n/ac standards. The experimental results were then compared with the network throughput achieved using the improved TS and Pure Simulation (PS) approaches, validating the new proposed model and confirming its relevance to reproduce experiments previously executed in real environments. © 2021 ACM.
2020
Autores
Cruz, R; Fontes, H; Ruela, J; Ricardo, M; Campos, R;
Publicação
Proceedings of the 2020 Workshop on ns-3, WNS3 2020, Gaithersburg, MD, USA, June 17-18, 2020
Abstract
2019
Autores
Coelho, A; Almeida, EN; Ruela, J; Campos, R; Ricardo, M;
Publicação
2019 IEEE SYMPOSIUM ON COMPUTERS AND COMMUNICATIONS (ISCC)
Abstract
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