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Articles 1 - 12 of 12
Full-Text Articles in OS and Networks
Ecomves: Enhancing Comves Using Data Piggybacking For Resource Discovery At The Network Edge, Sanzida Hoque
Ecomves: Enhancing Comves Using Data Piggybacking For Resource Discovery At The Network Edge, Sanzida Hoque
Theses
Over the past few years, Augmented Reality (AR) and Virtual Reality (VR) have emerged as highly popular technologies that demand rapid and efficient processing of data with low latency and high bandwidth, in order to enable seamless real-time interaction between users and the virtual environment. This presents challenges for network infrastructure design, which can be addressed through edge computing. However, edge computing also presents challenges, such as selecting the appropriate edge server for computing tasks in dynamic networks with rapidly changing resource availability. Named Data Networking (NDN) is a potential future Internet architecture that could provide a balanced distribution of …
A Qos Aware Framework For Wireless Sensor Networks In Industrial Environments, Berta Carballido Villaverde
A Qos Aware Framework For Wireless Sensor Networks In Industrial Environments, Berta Carballido Villaverde
Theses
Wireless Sensor Networks (WSNs) are a key enabling technology for industrial monitoring applications where the use of wireless infrastructure allows high adaptivity and low cost in terms of installation and retrofitting. Although WSNs present several advantages over traditional wired monitoring systems, there is significant concern as to the reliability of wireless communications due to the unpredictability of the wireless channel, which is inhibiting the widespread adoption of the technology. Furthermore, due to the diverse range of monitoring applications that are found in industrial environments and their differing requirements, there is a need for quality of service (QoS) provisioning so that …
Management Framework For Hybrid Wireless Networks, Chong Shen
Management Framework For Hybrid Wireless Networks, Chong Shen
Theses
The objective of the Hybrid Wireless Network with dedicated Relay Nodes (HWN*) architecture is to interface the Base Station (BS) Oriented Mobile Network (BSON) and the 802.fix based Mobile Ad hoc Wireless Network (MANET) so that one system can be utilised as an alternative radio access network for data transmissions, while the incorporation of Relay Nodes (RN) is to extend the communication coverage, optimise medium resource sharing, increase spatial reuse opportunity, stabilise MANET link and create more micro-cells. The HWN* keeps the existing cellular infrastructure and a Mobile Terminal (MT) can borrow radio resources from other cells via secure multi-hop …
A Distributed Ai Approach For Large-Scale Wlan Design, Alan Mcgibney
A Distributed Ai Approach For Large-Scale Wlan Design, Alan Mcgibney
Theses
The recent dramatic trend towards always-on-connectivity has driven the need for mobile ubiquitous computing environments with the advent of the Wireless Local Area Network (WLAN) seeing a shift from traditional wired networks to wireless networking. A WLAN typically contains a number of access points that allow wireless enabled clients access information and network resources such as the internet without the need for wires, offering flexibility and mobility to the users. Initial wireless networks were convenience based allowing users access to the primary wired network, and involved little planning prior to roll-out. The proliferation of low cost wireless devices combined wdth …
Radio Resource Management For Cellular Wireless Local Area Networks., Olivia Brickley
Radio Resource Management For Cellular Wireless Local Area Networks., Olivia Brickley
Theses
The growing demand for mobile computing worldwide has led to the increasing deployment and use of Wireless Local Area Networks (WLANs) in the last number of years. During this time, user requirements have evolved, resulting in a more diverse mix of services being carried over the wireless medium. In particular, delay sensitive real-time applications such as streaming multimedia and voice over IP are growing in importance. The widely accepted IEEE 802.11b standard, however, was not designed with sufficient Quality of Service (QoS) constraints for such applications. A new draft of the standard named 802.1 le has been proposed that deals …
Sip Message Compression Technique For Efficient Multimedia Services In 3g Wireless Communications, Valerie Kenneally
Sip Message Compression Technique For Efficient Multimedia Services In 3g Wireless Communications, Valerie Kenneally
Theses
The direction of the global cellular industry is primarily determined by two standardisation bodies, the 3rd Generation Partnership Project (3GPP) (in Europe and Asia) and 3GPP2 (in North America). Both of these standardisation bodies are currently specifying a core network to deliver IP based multimedia services over 3G wireless networks. One of the fundamental building blocks of this IP based multimedia core network is the use of SIP (Session Initiation Protocol) as the control protocol. The radio resource, that is the available frequency spectrum, in wireless communication systems remains a limiting factor in terms of the bandwidth available to an …
Heterogenous Network Management, Kenneth Carey
Heterogenous Network Management, Kenneth Carey
Theses
Enterprise level system development, integrating a broad range of arctures and legacy systems, has received significant attention over the last few yentegrated chain management, which allows companies to see their full manufactu inventory and sales channels, has driven much of this work. Delivering quality IP 1 wireless access is forcing similar integration in 2.5G and 3G telecom archires. Such integration has resulted in the emergence of multi-protocol heterogeneietworks, combining IP core backbones, legacy databases and switchinghnology. Heterogeneous networks, due to their diversity of equipment and suppoDrotocols, introduce challenges for today's network administrators, particularly ii areas of device configuration and alarm …
Design And Analysis Of Radio Frequency Deployment Algorithms For Gsm, Mónica Pérez-Carbonell
Design And Analysis Of Radio Frequency Deployment Algorithms For Gsm, Mónica Pérez-Carbonell
Theses
Due to the growth of the subscriber base and the introduction of new services, mobile communications networks’ demand for wireless resources is increasing. This has resulted in an increasing need to change the frequency allocation of a network in order to adapt the cellular network to new frequency demands.
Currently, a planning tool generates a new frequency plan, which is. then deployed to cell sites. The deployment should ideally be carried out with minimum disruption to network operation, which makes this deployment process a critical undertaking as any errors during or after the deployment can leave the network with poor …
Development Of A Networked Interactive Information Environment Within A National Park, John Clifton
Development Of A Networked Interactive Information Environment Within A National Park, John Clifton
Theses
For the most part, the Killarney National Park (KNP) currently disseminates information to visitors in paper format and by word of mouth in a non-coherent fashion. Society as a whole is moving towards an Information Age delivered through an electronic medium. This project aims to facilitate the KNP in delivering a new electronically presented information experience to its global visitors.
Electronic media facilitate the delivery of in-depth multimedia as well as multilingual information. This information will be made available on demand to visitors and delivered through a variety of media including information points and handheld devices to facilitate the various …
A Fresh Look At The Provision Of Bandwidth To A Health Agency, James G. Leahy
A Fresh Look At The Provision Of Bandwidth To A Health Agency, James G. Leahy
Theses
This thesis describes development of a networking infrastructure to support a Regional Health Service in Ireland. It covers:-
• The design, building, commissioning and delivery of a Forward Emergency Control Vehicle to provide the video, voice and data communications needed to enhance delivery of patient care in Disaster Situations. The main focus here is on the integration of satellite and terrestrial communications.
• By studying the history of telecommunications provision over copper, the best use is made of the legacy copper cabling in and between existing buildings on a campus to provide both voice and data services.
• A financial …
An Approach To Networking In Irish Primary Schools, Donal A. O'Connor
An Approach To Networking In Irish Primary Schools, Donal A. O'Connor
Theses
In this Thesis, I hope to develop an approach to networking in the Irish Primary school which will provide practical as well as theoretical advice to Primary Teachers. In the pages that follow, I will detail a general outline of the principles of computer networking and detail models appropriate to the primary school.
At the outset, I wish to acknowledge that there are as many solutions to the primary school’s networking requirements as there are individual schools. This document is intended as a general set of guidelines for the average Primary school in this country. By this, I mean schools …
Security In Distributed Systems - A Framework For Different Application Types, Ingo Stengel
Security In Distributed Systems - A Framework For Different Application Types, Ingo Stengel
Theses
Security is a factor which decides upon the applicability of distributed applications. Therefore this thesis deals with security in distributed systems. The complexity of the existing distributed technologies makes it necessary to reduce the number of distributed technologies considered in this thesis, i.e. concentrating on: Java, Mobile Agents and CORBA, where only Java-based mobile agents will be considered.
After a short review of basic security principles including firewalls, existing security problems in the above mentioned distributed technologies are analysed. Additional generic problems in distributed systems are outlined.
Solutions are referring to two different areas: those regarding security problems with firewalls …