Maja Matijasevic

Learn More
Providing Massively Multiplayer Online Role-Playing Games (MMORPGs) is a big challenge for future mobile, IP-based networks. Understanding how the players’ actions affect the network parameters, the game platform, and the overall perceived quality is highly relevant for the purposes of game design, as well as for the networking infrastructure and network(More)
E-Health services comprise a broad range of healthcare services delivered by using information and communication technology. In order to support existing as well as emerging e-Health services over converged next generation network (NGN) architectures, there is a need for network QoS control mechanisms that meet the often stringent requirements of such(More)
This paper presents a framework for multi-user distributed virtual environments (VEs) and explores its application to teleoperation of a mobile robot over the Internet. The proposed framework, incorporating the functional and the interconnection models, attempts to represent common functionality, communication issues, and requirements found in distributed(More)
In this paper we present a software architecture for traffic generation based on application level player behavior in Massively Multiplayer Online Role-Playing Games (MMORPGs). We have performed measurements of network traffic for each of the previously defined action categories for MMORPGs (Trading, Questing, Dungeons, Raiding, Player versus Player Combat,(More)
Agility metrics are difficult to define, mainly due to the multidimensionality and vagueness of the concept of agility. In this paper, a fuzzy logic knowledge-based framework is presented for the assessment of manufacturing agility. The combined measure incorporates certain operational parameters, their variations, and their effect on the value of agility.(More)
utonomous Underwater Vehicles (AUVs) share common A control problems with other air, land, and water unmanned vehicles. In addition to requiring high-dimensional and computationally intensive sensory data for real-time mission execution, power and communication limitations in an underwater environment make it more difficult to develop a control architecture(More)
The IP Multimedia Subsystem (IMS) has been recognized as a reference next generation network architecture for offering multimedia services over an Internet Protocol (IP) based infrastructure. One of the key benefits of the IMS is efficient and flexible introduction of new services and access to third-party application providers, thanks to standard(More)
A framework for multi-user distributed virtual environments (DVEs) has been proposed. The proposed framework, incorporating two models (the functional model and the interconnection model), attempts to represent the common functionality, communication issues and requirements found in multi-user DVEs. The functional model concentrates on the DVE's(More)
Massively Multiplayer Online Role-Playing Games (MMORPGs) are one of the most exciting and most rapidly expanding genres of online games. This survey presents state-of-the-art and current research efforts in measuring, characterizing, and modeling the player behavior and the network traffic, as well as the relationships between them. We also tabulate the(More)
We demonstrate an urban crowd sensing application for monitoring air quality by use of specially-designed wearable sensors and mobile phones. The application is built upon the OpenIoT platform<sup>1</sup> with the goal to support context-aware and energy-efficient acquisition and filtering of sensor data in mobile environments while ensuring adequate(More)