Dissertation/ Thesis
Protocolo de comunicação em grupo confiável e de tempo real para aplicações de coordenação veicular sobre redes veiculares Ad Hoc
| العنوان: | Protocolo de comunicação em grupo confiável e de tempo real para aplicações de coordenação veicular sobre redes veiculares Ad Hoc |
|---|---|
| المؤلفون: | Pereira, Marcela Alves |
| المساهمون: | Sá, Alírio Santos de, orcid:0000-0002-4721-6082, http://lattes.cnpq.br/8529510757160217, Macedo, Raimundo José de Araújo, Cordeiro, Weverton Luis |
| بيانات النشر: | Universidade Federal da Bahia Programa de Pós-Graduação em Mecatrônica da UFBA (PPGM) UFBA Brasil Instituto de Computação - IC |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Redes Veiculares Ad Hoc, Sistemas Distribuídos, Comunicação em Grupo, Tempo Real, Difusão Confiável, Vehicular Ad Hoc Networks, Distributed Systems, Group Communication, Real-time, Reliable Multicast, Mecatrônica, Ciência da Computação, Eletrônica |
| الوصف: | Vehicular Ad hoc Networks (VANETs) constitute a specific type of mobile ad hoc network in which nodes are vehicles capable of sending and receiving messages directly between each other using wireless communication links, enabling the creation of several distributed applications without the dependence on a specific infrastructure for vehicle communication. In urban and highway environments, VANETs have been seen as an opportunity in the development of Intelligent Transportation Systems (ITS), aiming not only to improve traffic flow, security, and well-being but also to reduce pollutant emissions. However, many distributed applications for ITS require groups of vehicles to coordinate their actions consistently, reliably, and with temporal constraints. Nevertheless, in VANETs formed in urban and highway environments, vehicles travel along pathways exhibiting a mobility pattern and highly dynamic communication structure. Therefore, network topology changes, communication link disconnections, and message losses are frequent in a VANET. Hence, meeting the requirements for vehicle coordination in distributed ITS applications based on VANETs represents a challenge. In this context, this work proposes the Vehicular Causal Block Protocol (VCBP) to support the vehicle coordination requirements in distributed ITS applications based on VANETs. The proposed group communication protocol offers the facility of message multicast with guarantees of reliable delivery, temporal constraints, and causal and total ordering of messages. VCBP has been implemented and evaluated in a vehicular network simulation environment, and its performance has been compared with other protocols available in the literature. The results show that VCBP can provide enhanced message delivery guarantees with a message delivery rate similar to or better than other evaluated approaches. ; FAPESB ; (VANETs, Vehicular Ad hoc Networks) constituem um tipo específico de redes móveis cujos nós são veículos capazes de enviar e receber mensagens diretamente entre si ... |
| نوع الوثيقة: | thesis |
| وصف الملف: | application/pdf |
| اللغة: | Portuguese |
| Relation: | ALVES, R. S. et al. Redes Veiculares: princípios, aplicações e desafios. Minicursos do Simpósio Brasileiro de Redes de Computadores, SBRC, p. 17–24, 2009; COULOURIS, G. et al. Sistemas Distribuídos-: Conceitos e Projeto. Porto Alegre, Brasil: Bookman Editora, 2013;CRISTIAN, F. Understanding fault-tolerant distributed systems. Communications of the ACM, ACM, New York, NY, USA, v. 34, n. 2, p. 56–78, February 1991. ISSN 0001- 0782. Disponível em: ⟨http://doi.acm.org/10.1145/102792.102801⟩. Acesso em: October, 4, 2021.; JIANG, D.; CHEN, Q.; DELGROSSI, L. Optimal data rate selection for vehicle safety communications. In: Proceedings of the Fifth ACM International Workshop on VehiculAr Inter-NETworking. New York, NY, USA: Association for Computing Machinery, 2008. (VANET ’08), p. 30–38. ISBN 9781605581910. Disponível em: ⟨https://doi.org/10.1145/ 1410043.1410050⟩; LAMPORT, L. Time, clocks, and the ordering of events in a distributed system. Communications of the ACM, ACM, v. 21, n. 7, p. 558–565, 1978; LIMA, G.; MACÊDO, R. A. A robust causal order protocol. 11th Symposium on Com- puter Architecture and High Performance Computing(SBAC-PAD’99), v. 11, 1999; https://repositorio.ufba.br/handle/ri/38925 |
| الاتاحة: | https://repositorio.ufba.br/handle/ri/38925 |
| رقم الانضمام: | edsbas.92095D5E |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |