Towards Improved Vehicular Information-Centric Networks by Efficient Caching Discovery

Autor(es)

Rondon, Lucas B. ^[1] ; Immich, Roger ^[2] ; Rocha Filho, Geraldo P. ^[3] ; Neto, Augusto Venancio ^{[4, 2]} ; Maciel Peixoto, Maycon Leone ^{[1, 5]} ; Villas, Leandro A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Inst Comp, BR-13083852 Campinas - Brazil

^[2] Univ Fed Rio Grande do Norte, Digital Metropolis Inst, BR-59078970 Natal, RN - Brazil

^[3] Univ Brasilia UnB, Inst Exact Sci, Dept Comp Sci, Campus Darcy Ribeiro, BR-70910900 Brasilia, DF - Brazil

^[4] Univ Aveiro, Inst Telecomunicacoes, P-3810193 Aveiro - Portugal

^[5] Univ Fed Bahia, Comp Sci Dept, BR-40170115 Salvador, BA - Brazil

• Tipo de documento: Artigo Científico
• Fonte: VEHICLES; v. 2, n. 3, p. 453-467, SEP 2020.
• Citações Web of Science: 1

Resumo

The number of connected cars and the massive consumption of digital content on the Internet have increased daily. However, the high mobility of the vehicles, coming from patterns' variation over time, makes efficient large-scale content distribution quite challenging. In light of this, the emerging Vehicular Named Data Network (VNDN) architecture provides support for content-centric network communications and caching capabilities, which allows reliable and larger-scale content delivery over Vehicular Ad-Hoc Networks (VANETs). This notwithstanding, the high number of interest packets in VNDN tends to introduce broadcast storm occurrences during the cache discovery process. Thus, network performance degradation comes up for the influence of both increased packet loss rates and delays on content recovery during communication between vehicles. This work proposes a new cache discOVEry pRoTocol (OVERT VNDN), which combines the computational geometry and degree centrality concepts to tackle the VNDN performance degradation challenges and issues. The main idea behind OVERT VNDN is to choose the most appropriate relay vehicles to engage interest packets' delivery within the VNDN, seeking to achieve higher network performance by optimizing broadcast storm incidence. The obtained results suggest that OVERT VNDN outperforms its competitor in the following key performance indicators: (i) improving the cache discovery process by 120.47%; (ii) enhancing the content delivery rate by 43%; and (iii) reducing the number of interest packets by 80.99%. (AU)

• Processo FAPESP: 18/02204-6 - Transmissão de vídeo eficiente e resiliente em cidades inteligentes
• Beneficiário: Roger Kreutz Immich
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 14/50937-1 - INCT 2014: da Internet do Futuro
• Beneficiário: Fabio Kon
• Modalidade de apoio: Auxílio à Pesquisa - Temático