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The use of smart phones and similar devices are increasing day by day and mobile devices are moving towards becoming the mainstream computing hardware. In parallel, the number of mobile applications is increasing exponentially. Besides the many advantages of being mobile, in these applications limited battery power is a fundamental constraint. With "Energy Aware" programming techniques,...
The digitization of social networks has enabled the passive collection of large scale data, which in turn have fostered social studies that have been traditionally dependent on small scale, interview-based data. During the last years, a new class of digital social networks has emerged, namely, location-based social networks (LBSNs). The main interaction between users of an LBSN is location sharing,...
The content routing protocols for MANETs proposed to date require the flooding of content requests or link-state advertisements. The Adaptive Publish-subscribe Distance Vector (APDV) protocol is presented as an alternative. APDV combines routing to well-known directories using distance-vector signaling with publish-subscribe mechanisms to discover content. Named data objects (NDO) are published with...
Neighbor discovery is crucial for both wireless sensor networks and mobile computing applications. The crux of the problem is to achieve energy efficiency, which has been demonstrated to be difficult by prior work. In this paper we propose Hello, a generic flexible protocol for neighbor discovery. With an unrestricted parameter, it serves as a generic framework that incorporates existing deterministic...
Although the computational power of mobile devices has been increasing, it is still not enough for some classes of applications. In the present, these applications delegate the computing power burden on servers located on the Internet. This model assumes an always-on Internet connectivity and implies a non-negligible latency. The thesis addresses the challenges and contributions posed to the application...
Mobile Social Network in Proximity (MSNP) is a new form of social network in which users are capable of interacting with their surroundings via their mobile devices in public mobile peer-to-peer (MP2P) environments. However establishing such an MSNP faces several trust issues. A classic MP2P trust scheme usually requires high amount of data transaction in order to identify the trustworthiness of service/content...
In this paper we present a first prototype of the EasyHarvest framework, which aims to simplify the deployment and controlled execution of large-scale sensing applications on smartphones. On the one hand, application owners submit to a server sensing tasks for distribution on smartphones, and collect the data produced by them in a simple manner. On the other hand, smartphone owners control the execution...
In this work we examine a large dataset of 335 million anonymized call records made by 3 million users during 47 days in a region of northern Italy. Combining this dataset with publicly available user data, from different social networking ser-vices, we present a probabilistic approach to evaluate the potential of re-identification of the anonymized call records dataset. In this sense, our work explores...
Online Maintenance Assistance (OMA) is a tool for supporting Remote Maintenance. It was developed by Airbus and the University of Applied Sciences Osnabrueck, Germany. Operators performing maintenance tasks in front of an aircraft can use OMA to establish a conference to a remote expert. They can provide different camera views on of a maintenance part or location. In addition, the screen output of...
The IEEE International Conference on Communications (ICC 2014), the leading international venue dedicated to the advancement of wireless and wireline communications world- wide, will hold its next annual event June 10 ?? 14 at the Hilton Sydney Hotel in Sydney, Australia surrounded by iconic natural wonders and world-renown cultural attractions such as Darling Harbour, Royal National Park, the Sydney...
WiFi offloading is regarded as one of the most promising techniques to deal with the explosive data increase in the existing cellular network due to its high data transmission rate, and low requirement on devices. In this paper, we investigate the mobile data offloading problem through a third-party WiFi access point (AP) for a cellular mobile system. From the cellular operator's perspective, by assuming...
The high popularity of smartphones and mobile PCs is expected to increase wireless data traffic in the order of 1000 times by 2020 [1]. However, the current situation of Mobile Network Operator (MNO)s is characterized by increasing margin pressure due to declining revenues and an increasing cost base. Self-optimization functionalities, e.g. for Mobility Robustness Optimization (MRO), are essential...
Nowadays, one of the main problems of mobile operators is to handle network traffic more resourcefully. Techniques, which increase the traffic capacity over the mobile core with minimum costs, play a fundamental role. Following advent of smart phones, the most of the traffic bandwidth is being used for connecting to external IP networks, like the Internet. Consequently, this overloaded traffic causes...
The last years created a solid opportunity to realize an important vision of ubiquitous computing, which is the seamless and pervasive integration of mobile and fixed infrastructures to support everyday tasks. Nowadays, mobile devices are essential tools for developed countries' daily living, while situated large displays are being widely deployed in public areas, shops, and private institutions....
With the popular of computer and the rapid development of the network, Network Online examination has replaced traditional paper examination gradually, and rating automatically by machine also avoid the disadvantage of rating by people such as waste of time and energy. In this topic, when the VB test involves in simple controls, the system takes the method of the first static score and then dynamic...
Persons suffering from intractable disease like ALS (Amyotrophic Lateral Sclerosis) and spinal cord injury often show deterioration in muscular function. Some of these patients are obliged to use artificial respirators and cannot have verbal communication with others. In order to support their communication, there exist various input devices like touch sensor input devices, capacitance sensor input...
This paper proposed an optimized strategy of the incentive mechanism for participatory sensing network on the basis of Sense Util which is our previous research work. For optimizing, the strategy considered the possibility of that some users actually cannot participate the current sensing task, so in order to avoid unnecessary energy and bandwidth consumption on server end, users were classified into...
During the process that wireless sensor network try to cover its target area, a lot of redundant nodes are generated, resulting in excessive network energy consumption and incomplete node coverage. Against this problem, an efficient covering algorithm based on point set optimization is proposed. In the algorithm, the Gaussian normal density function and coverage area probability function are utilized...
Mobile devices and smartphones have the potential to be powerful and complex systems. Their ever-increasing popularity has created a need for more robust and personal applications. This paper proposes a personalization system to modify phone's state according to its owner routine and behavior, called Smart Profile. This system was implemented and tested with two modules, a calendar and a location...
A large amount of file transfer systems in use today are designed to operate in wired networks. In the context of vehicular ad-hoc networks, these systems may behave improperly, due to the inherent characteristics of wireless networks and mobility of vehicles. This work proposes and implements a model for transferring files using basic client-server architecture, with focus on its operation in vehicular...
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