Uma Análise da Confiança na Qualidade do Contexto em VANETs
Resumo
Em sistemas cientes do contexto (Context-aware systems - CAS), informações sobre o ambiente obtidas de sensores são utilizadas pelo sistema para se adaptar de forma autônoma às alterações deste ambiente. Métricas de Qualidade de Contexto (QoC) apoiam a decisão destes sistemas quanto ao uso do contexto. Em VANETs o contexto pode estar relacionado com informações da mobilidade dos veículos ou de seu ambiente de comunicação, mas também das aplicações sendo executadas e seus usuários, assim como o conteúdo das mensagens sendo trocadas. Neste artigo utilizamos um contexto de mobilidade e comunicação para VANETs e consideramos as métricas de Qualidade de Contexto validity Time, Minimum Validity Time, Age e Confidence. Analisamos de forma detalhada o comportamento da métrica Confidence, a qual indica um nível de confiança para a métrica Validity Time, caracterizando QoC em níveis. Discutimos também, os resultados de implementação em um ambiente simulado (VEINS/SUMO/OMNET++).
Palavras-chave:
VANET, Context, Quality of Context
Referências
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M. Baldauf, S. Dustdar, and F. Rosenberg, “A survey on context-aware systems,” International Journal of Ad Hoc and Ubiquitous Computing, vol. 2, no. 4, pp. 263–277, 2007.
G. D. Abowd, A. K. Dey, P. J. Brown, N. Davies, M. Smith, and P. Steggles, “Towards a better understanding of context and contextawareness,” in Handheld and ubiquitous computing. Springer, 1999, pp. 304–307.
S. Pajares Ferrando and E. Onaindia, “Context-aware multi-agent planning in intelligent environments,” Information Sciences, vol. 227, pp. 22–42, 2013.
F. A. Ghaleb, M. A. Maarof, A. Zainal, B. A. S. Al-rimy, F. Saeed, and T. Al-Hadhrami, “Hybrid and multifaceted context-aware misbehavior detection model for vehicular ad hoc network,” IEEE Access, vol. 7, pp. 159 119–159 140, 2019.
F. Dressler, F. Klingler, C. Sommer, and R. Cohen, “Not all vanet broadcasts are the same: Context-aware class based broadcast,” IEEE/ACM Transactions on Networking, 2018.
H. Vahdat-Nejad, A. Ramazani, T. Mohammadi, and W. Mansoor, “A survey on context-aware vehicular network applications,” Vehicular Communications, vol. 3, pp. 43–57, 2016.
M. Sepulcre and J. Gozalvez, “Context-aware heterogeneous v2x communications for connected vehicles,” Computer Networks, vol. 136, pp. 13–21, 2018.
T. Buchholz, A. Küpper, and M. Schiffers, “Quality of context: What it is and why we need it,” in Proceedings of the workshop of the HP OpenView University Association, vol. 2003, 2003.
A. Manzoor, H.-L. Truong, and S. Dustdar, “Using quality of context to resolve conflicts in context-aware systems,” in Quality of Context. Springer, 2009, pp. 144–155.
——, “Quality of context: models and applications for context-aware systems in pervasive environments,” The Knowledge Engineering Review, vol. 29, no. 02, pp. 154–170, 2014.
P. Bellavista, A. Corradi, M. Fanelli, and L. Foschini, “A survey of context data distribution for mobile ubiquitous systems,” ACM Comput. Surv., vol. 44, no. 4, pp. 24:1–24:45, Sep. 2012. [Online]. Available: http://doi.acm.org/10.1145/2333112.2333119
N. Agoulmine et al., “A quality-aware approach for resolving context conflicts in context-aware systems,” in Embedded and Ubiquitous Computing (EUC), 2011 IFIP 9th International Conference on. IEEE, 2011, pp. 229–236.
M. Sá and S. Gorender, “Quality of context for vanets: Qoc metrics for connectivity in vanets.” in 2019 18th International Conference on Ad-Hoc Networks and Wireless (ADHOC-NOW). Springer, 2019, pp. 420–431.
——, “Monitoração inteligente de estados de comunicação para aplicações sobre redes veiculares,” in IX Encontro Nacional de Intelig ência Artificial, ser. ENIA’2012, Paraná, Brasil, October 2012.
A. Wegener, M. Piórkowski, M. Raya, H. Hellbrück, S. Fischer, and J. Hubaux, “Traci: an interface for coupling road traffic and network simulators,” in Proceedings of the 11th communications and networking simulation symposium. ACM, 2008, pp. 155–163.
C. Sommer, R. German, and F. Dressler, “Bidirectionally coupled network and road traffic simulation for improved ivc analysis,” Mobile Computing, IEEE Transactions on, vol. 10, no. 1, pp. 3–15, 2011.
D. Krajzewicz, G. Hertkorn, C. Rossel, and P. Wagner, “Sumo (simulation of urban mobility),” Proceedings of the 4th Middle East Symposium on Simulation and Modelling (MESM20002), pp. 183–187, 2002.
A. Varga et al., “The omnet++ discrete event simulation system,” in Proceedings of the European Simulation Multiconference (ESM2001), 2001, pp. 319–324.
S. Krauß, “Microscopic modeling of traffic flow: Investigation of collision free vehicle dynamics,” Ph.D. dissertation, DLR Deutsches Zentrum fuer Luft-und Raumfahrt eV, Koeln (Germany). Abt. Unternehmensorganisation und-informatio, 1998.
P. Shankar, T. Nadeem, J. Rosca, and L. Iftode, “Cars: Context-aware rate selection for vehicular networks,” in Network Protocols, 2008. ICNP 2008. IEEE International Conference on. IEEE, 2008, pp. 1–12.
J. Ott and D. Kutscher, “Drive-thru internet: Ieee 802.11 b for”automobile”users,” in IEEE INFOCOM 2004, vol. 1. IEEE, 2004.
F. Lyu, N. Cheng, H. Zhu, H. Zhou, W. Xu, M. Li, and X. S. Shen, “Intelligent context-aware communication paradigm design for iovs based on data analytics,” IEEE Network, vol. 32, no. 6, pp. 74–82, 2018.
K. Paridel, T. Mantadelis, D. Preuveneers, G. Janssens, Y. Vanrompay, Y. Berbers et al., “Analyzing the efficiency of context-based grouping on collaboration in vanets with large-scale simulation,” Journal of Ambient Intelligence and Humanized Computing, vol. 5, no. 4, pp. 475–490, 2014.
V. Alagar and K. Wan, “Context-aware trust-based management of vehicular ad-hoc networks (vanets),” in 2015 IEEE 12th Intl Conf on Ubiquitous Intelligence and Computing and 2015 IEEE 12th Intl Conf on Autonomic and Trusted Computing and 2015 IEEE 15th Intl Conf on Scalable Computing and Communications and Its Associated Workshops (UIC-ATC-ScalCom). IEEE, 2015.
J. Guo, X. Li, Z. Liu, J. Ma, C. Yang, J. Zhang, and D. Wu, “Trove: A context-awareness trust model for vanets using reinforcement learning,” IEEE INTERNET OF THINGS, vol. 7, no. 7, pp. 6647–6662, july 2020.
A. Yasar, K. Paridel, D. Preuveneers, and Y. Berbers, “When efficiency matters: towards quality of context-aware peers for adaptive communication in vanets,” in Intelligent Vehicles Symposium (IV), 2011 IEEE. IEEE, 2011, pp. 1006–1012.
Publicado
22/11/2021
Como Citar
SÁ, Margarete Oliveira dos S. de; GORENDER, Sérgio.
Uma Análise da Confiança na Qualidade do Contexto em VANETs. In: ARTIGOS COMPLETOS - SIMPÓSIO BRASILEIRO DE ENGENHARIA DE SISTEMAS COMPUTACIONAIS (SBESC), 11. , 2021, Evento Online.
Anais [...].
Porto Alegre: Sociedade Brasileira de Computação,
2021
.
p. 56-63.
ISSN 2763-9002.
DOI: https://doi.org/10.5753/sbesc_estendido.2021.18494.
