NDLI: A Beaconing-Based Opportunistic Service Discovery Protocol for Vehicular Networks

Content Provider	IEEE Xplore Digital Library
Author	Yokoyama, R.S. Kimura, B.Y.L. Jaimes, L.M.S. Moreira, E.D.S.
Copyright Year	2014
Description	Author affiliation: Grupo Cienc. Computacionales, Univ. de Pamplona, Pamplona, Colombia (Jaimes, L.M.S.) \|\| Inst. de Cienc. Mat. e de Comput., Univ. de Sao Paulo - USP, Sao Carlos, Brazil (Yokoyama, R.S.; Moreira, E.D.S.) \|\| Inst. de Mat. e Comput., Univ. Fed. de Itajuba, Itajubá, Brazil (Kimura, B.Y.L.)
Abstract	In the future, wireless access in vehicular environments (WAVE) will provide the foundation for a broad range of intelligent applications in transport, related to safety, comfort and, traffic management, to mention a few. Opportunities to instantaneously advertise and disseminate services arise with the technological advances of the vehicular networks. Points of interest (POI) to drivers and passengers, e.g, shops and gas stations, will broadcast advertisements with local services and facilities to the nearby vehicles by exploiting the road-side unit (RSU) infrastructure and comfort applications. However, RSU access coverage limitation or packet losses can prevent users (drivers or passengers) who are genuinely interested in services from finding them, even with a short distance from the POI. To improve the service discovery, we propose OSDP (opportunistic service discovery protocol), a protocol based on opportunistic vehicle contact and a store-and-forward technique to discover and advertise services in vehicular networks. OSDP is a lightweight and alternative protocol intended for location-aware applications. It supports distributed services fully independent from Internet access. In this paper we describe the key design concepts of OSDP and demonstrate its feasibility by a concept proof test bed. We perform two experiments evaluating the success rate of: i) capturing and storing service messages and ii) searching for a service of interest and receiving reply messages containing it. OSPD feasibility was demonstrated for different vehicle densities and for very short time connections. Results indicate that a vehicle can capture 100% of messages under the coverage of seven POI sending advertisement messages every second, with a contact time of 1.2s. Moreover, a user can find a service with 95% of success rate by querying one neighbour vehicle.
Starting Page	498
Ending Page	503
File Size	728219
Page Count	6
File Format	PDF
e-ISBN	9781479926534
DOI	10.1109/WAINA.2014.82
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-05-13
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Radio frequency Protocols Unicast XML Opportunistic Network VANET Beacon Probes Vehicles Service Discovery Protocol
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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