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Appropriate wireless LAN design is essential for ensuring a good quality of telecommunication service. Optimal access point deployment (APD) presents a typical NP-complex problem that resolves wireless networking infrastructure with the involvement of multiple objectives (MO-APD). MO-APD can be divided into the APD construction (APD-C) problem and the APD enhancement (APD-E) problem. For APD-E problem...
We propose a novel approach to establish cryptographic keys among mobile users and a networking infrastructure. Our approach comes at a low cost and can either be used as an alternative to existing solutions or can be employed in a complementary way. Our basic observation is that users are often very mobile. As they interact with the infrastructure, each of them leaves a unique trace behind, known...
The evolution of network technologies brought increasing management complexity of networking infrastructure and protocols. Cognitive networking was introduced to deal with such complexity. This work presents a cognitive algorithm for cross-layer performance management which is the core of a decentralized framework for self-configuration of communication protocols. We illustrate the proposed solution...
The information and communications technologies world is migrating towards the Future Internet (FI) era. Operators will have increased complexity to address in the FI era, compared to today, in the management of their infrastructure and services. This is due to the extended set of applications that should be supported and to the more options offered by the infrastructure. Cognitive management systems...
Summary form only given. Computer-based developments over the last years have facilitated decision makers and problem solvers with numerous computational tools to support operational, tactical, and strategic levels of enquiry via the formation of collaborative virtual organizations. Current ITs are capable of supporting collaborative activities in the cyberspace. These cyber-enabled collaborations...
In this paper we propose an implementation of a WiMAX-based integrated system for e-medicine in the Republic of Macedonia. We present developed telemedicine multimedia services and their related QoS. We also present the problems and challenges for using a public wireless IP network for setting up the system.
With the fast development in wireless technologies and wireless devices, wireless mesh networks (WMN) are becoming and important networking infrastructure, especially due to their low cost of deployment and maintenance. A main issue in deploying WMNs is the optimal placement of mesh routers to achieve network connectivity and stability through the maximization of the size of the giant component in...
Networking infrastructure is a vital part of virtual computer clusters. This paper describes VirtCloud, a system for interconnecting virtual clusters in a state-wide network based on advanced features available in academic networks. The system supports dynamic creation of virtual clusters without the need of run-time administrative privileges on the backbone core network, encapsulation of the clusters,...
With the rapid advances in wireless ad hoc networking and the dramatic growth in network-based video applications, there is an urgent need for content-rich video communications in ad hoc networks. However, it is a great challenge to support real-time video transport over such networks. Providing acceptable video stability in ad hoc networks is a demanding task for both the video encoder as well as...
The paper presents the design of an engineering course on ldquooptical networkingrdquo in a traditional classroom /distance learning format. The paper will also show that how classroom learning can be enhanced by making available to learners the classroom lecture in audio /video/pdf format from anywhere and at all times on demand, referred as the lecture-on-demand technology. This technology enables...
Physical access control systems are installed in areas that need to be supervised and user access control is necessary. Existing commercial applications require a dedicated communication infrastructure and special hardware requirements comprising a compact system not flexible to user customization. This paper presents a physical access control system that utilizes existing networking and computer...
In this paper, we introduce magic surfaces; a novel positioning and networking infrastructure for indoor sensor network applications. To support various kinds of applications, magic surfaces provide positioning, orientation estimation, bidirectional communication and power transmission functions in a contact-less manner by using a magnetic-based technique. This paper describes the design, implementation...
When delivering content across proliferations of presentation devices, current Web engineering tries to allow the web accessible for varieties accessing mechanisms and universal user modes. An intelligent content amalgamation mechanism is researched to meet current web information systems. It provides flexible networking infrastructure with effective content adaptations practices. Including an abstracted...
This paper presents a top-down approach to design switched Ethernet networks based upon tree topologies for realtime automation systems. The approach considers each port of a switch as an exclusive networking resource and thus permits concurrent communication over different ports. We firstly focus on a class of special cases with unitary packet-sizes and transmission of each request in every production...
At the heart of any switch or router is a packet-switching fabric subsystem. Broadly speaking, the switch fabric facilitates the exchange of data packets from the input ports to the output ports. Fabrics range in size from hand-sized, four-port boxes to rack-mounted chassis that require forklifts to reposition. Port density and data rates strongly dictate fabric complexity. Advances in point-to-point...
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