NDLI: Data delivery guarantees in congested Vehicular ad hoc networks using cognitive networks

Content Provider	IEEE Xplore Digital Library
Author	Ghandour, A.J. Fawaz, K. Artail, H.
Copyright Year	2011
Description	Author affiliation: Electrical and Computer Department, American University of Beirut, Lebanon (Ghandour, A.J.; Fawaz, K.; Artail, H.)
Abstract	The Wireless Access in Vehicular Environments (WAVE) protocol stack is one of the most important protocols used to allocate spectrum for vehicular communication. In a previous work, we proved that WAVE does not provide sufficient spectrum for reliable exchange of safety information. More specifically, safety message delay is not acceptable and exceeds application requirements. In this paper, we propose a system that provides Data delivery guarantees using Cognitive networks principles in congested Vehicular ad hoc networks. We will refer to our system as DCV. Our goal is to ensure that all safety packets get generated and transmitted during the same interval. The system monitors the contention delay experienced by cars on the control channel where all safety packets should be transmitted. If the sensed contention delay exceeds delay threshold γ, the Road Side Unit (RSU) needs to increase the spectrum allocated to the control channel using cognitive networks. The RSU employs a feedback control design where additional bandwidth is added to drive the contention delay below the delay threshold γ used as reference input for the controller. Analysis and simulations indicate the effectiveness of the system in providing data delivery guarantees in vehicular networks and thus increasing safety measures on the road.
Starting Page	871
Ending Page	876
File Size	680290
Page Count	6
File Format	PDF
ISBN	9781424495399
e-ISBN	9781424495382
DOI	10.1109/IWCMC.2011.5982661
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-04
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	congested networks Protocols cognitive networks Roads QoS Bit rate Bandwidth data delivery guarantees vehicular networks Safety Delay Vehicles
Content Type	Text
Resource Type	Article

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