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This paper presents and characterizes large-scale variations of received power generated by vehicular traffic crossing a radio link. Measurements in the 2 GHz band for several small-cell configurations involve various transmitter heights, link distances and urban densities. Observations showed that stronger losses up to 30 dB are due to medium to high vehicles. Lower vehicles have a smaller impact...
Taxis play an important role in modern public transportation networks, especially in Lebanon where public transportation services are still underdeveloped. Street hailing is the current common method for getting a taxi, where you simply wait on side roads and hail to find a taxi who thinks you fit within his planned route. Taxi drivers currently rely on a simple first come-first serve approach with...
In this paper, we present an optimized conditional privacy preservation model for vehicle ad-hoc networks (VANETs). This model includes an ID-based cryptosystem to assure users' anonymity using pseudonyms; however the model provides a backdoor for law enforcement authorities to trace misbehaving and suspicious users. In this model, we propose a heuristic that optimizes the pseudonym update process...
Data Acquisition and delivery in Vehicular Ad hoc Networks (VANETs) is an important topic that has received very little attention. In [1],we proposed a system in which roadside units (RSUs) were exploited to satisfy the various requests of VANET users. Our approach uses RSUs as delegates to acquire services from service providers without the users connecting to them. Users' interests range from email...
Wireless Sensor Networks (WSNs) have been used recently in different applications such as environmental monitoring and target tracking. Few papers have investigated the viability of this technology on board ships. We study in this paper the possibility of replacing the wired shipboard monitoring system by a WSN. This environment has a specific metallic structure which makes the wireless communication...
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