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In this paper, we introduce a road condition sharing system using Vehicle-to-Vehicle communication in various communication environment. Japan is prone to natural disasters. In addition, traffic hazards and traffic accidents occur due to snow. A wide range and quick condition understanding and monitoring are needed. In addition, it is important to understand the condition of the destination and the...
Tire pressure monitoring system (TPMS) requirement is increasing everyday because of the increase in number of accidents due to sudden burst or loss of pressure as it is not possible to manually check the tire condition while running. There is a need of an automated system which can alert the driver about the tire condition and take the corrected actions. Speed plays a major role in the performance...
Vehicular networks are vulnerable to many security threats. One of the security threats is Sybil attack, and traditional security solutions which are based on cryptography and centralized authority are insufficient to protect vehicular network from Sybil attacks. We present a lightweight solution for Sybil attacks based on received signal strength. Our scheme is lightweight enough to be used by independent...
This paper describes a system for helping teen drivers track there experience while training to obtain their driver's license. The proposed system is a portable in-vehicle device run by an embedded microcontroller that logs student driver hours and mileage and a PC program to create reports from the recorded data. The proposed device uses a GPS receiver to track distance traveled and time spent driving.
Vehicular ad hoc networks (VANET) have great potentials in modernizing transportation infrastructure. Deployment of data communications over such systems however is challenging due to node mobility. Unlike traditional networking scenarios, a user initiating a session for seeking traffic data (called receiver) is assumed to not know the identity associated with the counterpart. In reality, he or she...
Speed is one of the basic reasons for vehicle accident. Many lives could have been saved if emergency service could get accident information and reach in time. Nowadays, GPS has become an integral part of a vehicle system. This paper proposes to utilize the capability of a GPS receiver to monitor speed of a vehicle and detect accident basing on monitored speed and send accident location to an Alert...
As a step into the new generation of direct Tire Pressure Monitoring Systems (TPMS), a major concern is to increase the performance of the radio frequency communication between the intelligent tires and the receiver. The purpose of this paper is to propose an original analysis of the time diversity gain as a promising way of improving the performance of wireless TPMS communication. The goal is to...
A vehicle monitoring system communication protocol is designed in this paper. The protocol is divided into three layers and each layer of protocol and protocol streams have been carried out a detailed description, and finally an application example is given.
Signal Strength based position verification is more promising as compared to other Sybil attack detection techniques because it is lightweight and does not require centralisation. Nodes can locally determine their locations through received signal strength variations and inform neighbours about location updates accordingly. In position verification, network nodes verify the position of each node and...
Micro-climate monitoring usually requires deploying a large number of measurement tools. By adopting vehicular wireless sensor networks (VSNs), we can use fewer tools to achieve fine-grained monitoring. This work proposes a VSN architecture to realize micro-climate monitoring based on GSM short messages and availability of GPS receivers on vehicles. We demonstrate our prototype of a ZigBee-based car...
The underwater target localization problem is one important application for underwater acoustic sensor networks. This paper, based on "underwater acoustic transmission theory", solves the target localization problem. The proposed algorithm firstly studies the principle of underwater acoustics and applies it to set up the model of underwater signal energy transmission. According to the model,...
Video-streaming can now be offered on third-generation (3G) mobile networks. Most research efforts have focused on video download. This paper presents a detailed study of challenges faced for successfully deploying applications requiring life video upload. Both subjective and objective qualities as well as the effects of mobility are analyzed on real 3G networks. Consequently, video profiles are identified...
Traffic congestion on major roadways costs our nation billions of dollars in lost earnings, wasted fuel consumption, injury and loss of human life. Providing motorists with real time roadway conditions is essential to mitigating traffic congestion. We propose a novel real-time messaging system that can be used to communicate imminent traffic conditions to motorists. Having such information can allow...
From the users' point of view, resource management schemes may be considered as an abstract data type. An abstract specification of such schemes using axioms holding in partial algebras and relatively distributed implementations (expressed as CSP programs) are given and analyzed. Then the idea of probabilistic implementation of guard scheduling is suggested, which allows completely distributed symmetric...
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