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The problem of ensuring the safety of passengers waiting for public passenger transport at a halting point is considered. In addition, due to the large number of vehicles in the streets and road networks of cities, the lack of parking spaces, there is a problem of parking at bus stops. In order to solve the above problems, it is suggested to equip a bus stop with the necessary equipment for admission...
The vehicle-to-vehicle (V2V) data transmissions in Vehicular Ad-hoc Networks (VANETs) have been applied in many areas including the Internet of Vehicles, mobile data offloading, and mobile crowdsensing. The V2V-based data delivery that is opposite to the direction of a vehicle is called a backward delivery against the traffic flow, and it is blocked by an existing problem: a traffic hole. Under the...
Given a current point, a final destination, and visiting data point categories on a trip, a sequenced route query finds the shortest route which meets the query condition. Several algorithms have been proposed targeting to this query. When this query is used in real applications, the popularity of the visiting points (for example, restaurant, shopping center, etc.) in a trip are also important besides...
In this paper, we propose a pedestrian navigation system based on landmark recognition. Our proposed system utilizes a glass-type wearable device and gives a correspondence between a map and a real-world landscape. By recognizing a landmark position effectively, a pedestrian can easily know where to turn at each turning position and hence he/she can reach his/her goal without losing his/her way. Experimental...
Understanding vehicle mobility is essential for devising successful protocols for vehicular communications. Vehicles move at varying speeds on roads whose complexities range from plain highway lanes to urban boulevards with intersections/circles, traffic lights and various points of interest on them. This mobility pattern combined with vehicle density fluctuations depending on location and time makes...
Using Call Detail Records (CDR) to track mobile locations is becoming increasingly popular. In this paper, we design algorithms to compute a road signature, which is a typical sequence of cell sites that a mobile is connected to when traveling on the road. A good signature provides an easy way to determine whether other mobiles travel on the road in the future.
In this keynote, we look the fundamental limits of the information propagation speed in large scale mobile and intermittently connected networks, where end-to-end multihop paths may not exist and communication routes may only be available through time and mobility. We first introduce some analytical tools to derive generic theoretical bounds for the information propagation speed in this networks....
For smart traffic applications like dynamic route planning, communication between traffic participants is of high importance. Traditional communication architectures for smart traffic are centralized, which leads to major privacy concerns since every service provider gains a global view on the mobility behavior of all participating nodes. Recent publications on decentralized alternatives often claim...
Communications in highly mobile vehicular networks are challenging and have gained great attention in recent decades. One promising candidate is the IEEE 1609/802.11(p) network standard suite [1][2][3][4][5][6], which is evolved from the commodity 802.11 technology and revised for vehicular environments. Over the non-safety applications in vehicle networks, group communications are expected to enhance...
With the growing success of the mobile computing devices, such as laptop computer, third generation mobile phone, personal digital assistant, many current and emerging distributed applications present challenging problems to the RFID complex event processing architecture. The traditional architecture of central complex event processing should be reconstructed and the new architecture should show a...
Trajectories play an important role in analyzing the behavior of moving objects. Many researches have been conducted that retrieved similar trajectories of moving objects in Euclidean space rather than in road network space. However, in real applications, most moving objects are located in road network space. In this paper, we investigate the properties of similar trajectories in road network space...
One of the fundamental requirements of a traffic management system is the ability to determine when an incident has occurred so that proper responses can be initiated. Most of the existing automatic incident detection techniques suffer from many limitations including their inability to detect incidents under non dense traffic conditions and generation of many false positive alarms. In this paper,...
Geographical opportunistic dissemination scheme in an urban setting has a lot of potential applications range from daily services like advertising and local weather forecast to safety-related services such as fire/accident warning. These applications share several unique characteristics such as location-based address of nodes and maintaining in an area for a specific time. However, all existing solutions...
Geographical opportunistic dissemination scheme in an urban setting has a lot of potential applications range from daily services like advertising and local weather forecast to safety-related services such as fire/accident warning. These applications share several unique characteristics such as location-based address of nodes and maintaining in an area for a specific time. However, all existing solutions...
In order to provide a useful and usable mobile service that offers high value to customers to overcome the usability and performance constraints, this study suggests an user-centered design framework for development of new mobile Internet service. The proposed framework covers user characteristics, context of use, and user interface components of device and network. In a case study, integrated conceptual...
The application of mobile communication technology to support road traffic constitutes a challenging, but at the same time very promising working area for research and development. Services reach from vehicular safety applications including collision and other safety warnings to non-safety applications like real-time traffic congestion and routing information, high-speed tolling, mobile infotainment,...
In this paper we propose a robust system for window detection using popular descriptive statistics and image based methods, making use of 3D information from a laser scanner. The scanner generates 3D point clouds containing intensity and distance information in a spherical coordinate system, with optional additional RGB texture information. The applied descriptive statistical method exploits basic...
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