The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The mismatch between user demand and service supply creates a congestion in mobile wireless networks. The literature has a strong evidence that user behavior is highly predictable. Taking advantage of user demand predictability allows the carrier to apply proactive caching in order to smooth out the network load. Moreover, harnessing the information about user mobility enhances carrier's caching decision...
With more and more trajectory traces available, conducting analysis and mining on those trajectories can obtain valuable information. Although the published traces are often made anonymous by substituting the true identities of mobile nodes with random identifiers, the privacy concern remains. In this paper, we propose a new de-anonymization attack based on the movement pattern of moving objects....
Since GPS signal is not applicable indoors, vehicle tracking has proven a hassle in underground parking structures. Recent solutions highly rely on floor map to constraint inertial sensors noises. In this paper, we propose VeMap, a road map construction system using only smartphones inside vehicles. It saves effort-intensive and time-consuming business negotiations with building operators, and expensive...
Nowadays a great deal of attention is devoted to the issue of supporting big data analytics over big mobile social data. These data are generated by modern emerging social systems like Twitter, Facebook, Instagram, and so forth. Mining big mobile social data has been of great interest, as analyzing such data is critical for a wide spectrum of big data applications (e.g., smart cities). Among several...
In recent years, with the popularity of the running and other sports software, friend recommendation algorithm based on trajectory is gradually becoming a hot research. In this paper, the θ-ADBSCAN algorithm is used to dig the hot trail and the resident points of user's trajectory, then the trajectory segmentation algorithm is described, and the trajectory is replaced by the MTR which is composed...
This paper presents a cooperative filtering scheme for online parameter identification of 2D diffusion processes using data collected by a mobile sensor network moving in the diffusion field. The diffusion equation is incorporated into the information dynamics associated with the trajectories of the mobile sensors. A cooperative Kalman filter is developed to provide estimates of field values, the...
Human mobility is known to follow simple reproducible patterns, i.e., humans tend to travel a few known places. Early detection of those “significant journeys” has a prospect for emerging smart applications like real-time traffic route recommendation and automated HVAC (heating, ventilating, and air conditioning) systems. In this paper, we design, implement, and evaluate a mobile system that effectively...
Mobile devices are expected to perform complex tasks exceeding their current hardware capabilities. Traditional cloud-based solutions are often useful, but fail in adversarial environments with limited communication connectivity. This can be exemplified in battlefield scenarios where soldiers may require access to large processing capabilities, without sacrificing their own mobility. In this paper,...
The Highly Automated Driving Map (HAD Map), is an essential and significant research topic in automated driving. In the meanwhile, the corrugated beam guardrail, known as one kind of the traffic crash barrier, is one of the most important elements in the HAD Map. Our novel contribution in this paper is proposing a method to detect corrugated beam guardrail automatically from mobile laser scanning...
This paper presents a novel Local-Path Planning approach for an independent four-wheel steering (I4WS) mobile base. The approach smoothly drives and rotates the platform while still following a given path and avoiding obstacles. I4WS vehicles are omnidirectional vehicles, similar to shopping carts, if one neglects the time needed to steer the wheels. However, due to the danger of mechanical parts...
In the paper, an efficient spatial clustering algorithm, the improved DBSCAN (Density Based Spatial Clustering of Applications with Noise), is proposed, for cluster analysis of trajectory points gathered from Digital Movies Mobile Playing Systems(DMSs). By searching the density of points which are greater than a given threshold in rural areas, the density-reachable maximum movie playing clusters are...
This paper presents an infrared image processing system for monitoring and mapping the thermal distribution of regions in mobile remote sensing applications. The processing system consists of five modules: non-uniformity correction, trajectory segmentation, odd even correction, image projection and visualization. It has been designed to perform thermal mapping efficiently and meet the special requirements...
The search mission for the missing MH370 airplane demonstrated that an autonomous underwater vehicle (AUV) managed by a crew is a reliable resource for critical missions. However, it highlighted the cost associated with human support in robotic operations. This paper presents a mission planning strategy that takes mission constraints such as number of available AUVs and their characteristics, as well...
Robotic systems are a typical example of complex systems. Their design involves a combination of different technologies, requiring a multi-disciplinary approach. This is particularly challenging when a robotic system is required to interact either with humans or other entities within its environment. To tackle this complexity, we propose a design and validation approach based on MDE (Model-Driven...
This paper discusses the time-constrained data delivery problem in vehicular ad hoc networks (VANETs). The unique characteristics of the network present great challenges to the issue. First, there are no always-connected forwarding routes between vehicles. Second, there is an intrinsic tradeoff between communication cost and delivery quality. Third, there is great uncertainty about vehicular mobilities...
Trajectory models have numerous applications in the area of wiewlwss communications. The aim of this paper is to develop an empirical trajectory model for drifted motions. Recently, a highly flexible trajectory model based on the primitives of Brownian fields (TramBrown) was proposed by A. Borhani and M. Pätzold. This paper provides an empirical proof for TramBrown using global positioning system...
This paper presents a methodology for the parametric identification of the analytic dynamic model of a three degree of freedom delta type parallel robot. Dynamical behavior was modeled using the Euler-Lagrange analytic approach. Analytic dynamic model parameters were estimated using a MSC-ADAMS/MATLAB Cosimulation model. The identification algorithm employed was the recursive least squares, which...
Boosting trajectory planning is the basis of the gliding trajectory planning for land-launch hypersonic vehicle. Its terminal states are essential to subsequence flight. Besides, mobile launch is an important means to promote the survivability of hypersonic vehicle. To plan the boosting trajectory for hypersonic vehicle and satisfy the strict terminal constraints, firstly we analyzed and established...
With the rapid development of mobile Internet, the way users access the network becomes diverse, which provide much convenience for us to collect huge amount of users' information. In this paper, we present a model of measuring relationship between two users in campus and build a wireless data analysis system called WiCloud to verify our model. This work has several potential applications such as...
Mobile wireless ad hoc network (MANET) can significantly enhance the capability to monitor contaminated areas, detect pollution and gas clouds, tackle emergency incidents and support rescue teams that are working in the emergency areas. In this paper, we investigate the problem of estimation of boundary of discovered heavy gas cloud and tracking this clouds. The MANET comprised of mobile sensing devices...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.