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Vehicular ad-hoc networks (VANETs) are composed of mobile wireless communication devices on board of automobiles to help drivers in the urban traffic and on highways. In the Amazon, the waterways are the roads and the boats are the vehicles. In this paper, we investigate, through real experiments, the characteristics of links formed by boats running wireless technologies IEEE 802.11b/g in ad hoc mode...
This paper reviews a range of problems in the road transport field and the potential role of vehicular ad-hoc network systems (VANETs) in helping to solve them. In reality, the communications requirements vary widely from one application to the next, in terms of range, latency, and connectivity together with vehicle and roadside hardware. Based on the nature of the wireless channel, this presents...
Notice of Violation of IEEE Publication Principles"Security in Vehicular Ad-hoc Networks"by Umesh Sehgal, Kuljeet Kaur, Pawan Kumarin the Proceedings of the 2009 Second International Conference on Computer and Electrical Engineering ICCEE 09, December 2009, pp. 485-488After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this...
Our previous work proposes a macro model that controls the flows across naturally occurring bottlenecks in multi-hop wireless networks. The macro model resembles a conventional wired network, and allows us to apply extant research on flow control directly to ad hoc networks. In this paper, we further justify the feasibility of applying our macro model of ad hoc networks to access control and the validity...
The diversity of the applications supported by wireless ad hoc and sensor networks explain the success of these networks. However, their energy constrained nature requires the use of energy efficient strategies to maximize network lifetime. We can classify these strategies in four categories: 1. energy efficient routing, 2. scheduling the nodes sleeping state, 3. topology control by tuning node transmission...
Current research on wireless sensor networks is based on the assumption that these networks are deployed in a terrestrial environment. Relevant protocols and design specifications are developed under this condition. This makes the deployment of currently existing wireless sensor networks in marine environments extremely challenging. We present major challenges and applications of underwater wireless...
The need for supporting real time and multimedia applications for users of mobile ad hoc network (MANET) is becoming essential. Mobile ad hoc networks can provide multimedia users with mobility they demand, if efficient QoS multicast strategies were developed. The aim of this article is to define the building blocks of such an ad hoc QoS multicasting (AQM) protocol and propose a cross layer framework...
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