Authors:
Oleg Oleinichenko
;
Yagmur Sevilmis
;
Karsten Roscher
and
Josef Jiru
Affiliation:
Fraunhofer Institute for Embedded Systems and Communication Technologies ESK, Germany
Keyword(s):
Hybrid Communication, Network Selection, Adaptive Heterogeneous Networking, VANET, LTE, ITS-G5.
Related
Ontology
Subjects/Areas/Topics:
Applications and Uses
;
Sensor Networks
;
Sensor, Mesh and Ad Hoc Communications and Networks
;
Telecommunications
;
Vehicular Networks
;
Wireless Information Networks and Systems
Abstract:
In vehicular ad hoc networks (VANETs), successful delivery of GeoUnicast and GeoBroadcast packets depends on scenario-specific aspects like vehicle density, distribution of vehicles on the road and type of the environment (e.g., urban, rural). These aspects can significantly influence the reliability of the connection between communication parties making traditional ITS-G5 based ad hoc networks unreliable. The absence of communication partners in range, long transmission distances, non-line-of-sight (NLOS) conditions are just a few examples that could hinder ITS-G5 transmissions. In this paper, we propose a Hybrid Policy-based Network Selection Algorithm that uses LTE to strengthen and complement ITS-G5 under critical conditions in which successful transmission over the ad hoc network is highly unlikely. The main objective is to use as less LTE transmissions as possible whilst maintaining high Packet Delivery Ratio (PDR) within defined delay constraints. The results, which are derive
d from extensive simulation campaigns, show a clear advantage of using the hybrid scheme over solely ITS-G5 or LTE.
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