Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 37 for “"network elements"”.
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Ensuring interoperability between network elements in next generation networks
Next Generation Networks (NGNs), based on the Internet Protocol (IP), implement several services such as IP-based telephony and are beginning to replace the classic telephony systems. Due to the development and implementation of new powerful services these systems are becoming increasingly complex. …
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The suitability of network processors for multi-fied packet classification
… there is an increasing need for intelligent network elements that can adapt their behaviour to fit the needs of a particular network application. In order to do this, the network elements must be able to differentiate between trafic streams.
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Advanced mobile network monitoring and automated optimization methods
The operation of mobile networks is a complex task with the networks serving a large amount of subscribers with both voice and data services, containing extensive sets of elements, generating extensive amounts of measurement data and being controlled by a large amount of parameters. The objective …
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Implementation and Performance Evaluation of an NGN prototype using WiMax as an Access Technology
Telecommunications networks have evolved to IP-based networks, commonly known as Next Generation Networks (NGN). The biggest challenge in providing high quality realtime multimedia applications is achieving a Quality of Service (QoS) consistent with user expectations. One of the key additional …
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A Real time simulator for power electric networks
The main task of a real-time power network simulator on an off-the-shelf hardware platform, the IBM RISC System/6000 model 560 machine, is presented. Simplified models, based on those used in the EMIT, are included for the network elements: lumped resistors, capacitors, inductors and constant …
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Discovering network topology by correlating end-to-end delay measurements
Conventional methods of discovering network topology require the cooperation of network elements. We present a method of network topology discovery based solely upon end-to-end delay measurements that requires only the cooperation of end systems. Previous work using end-to-end measurements has …
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Call control signalling for personal communications over interconnected metropolitan area networks
… movements. A distributed personal communication network (PCN) based on the IEEE 802.6 metropolitan area networks (MANs) has been recently proposed as a means of supporting PCS. This network must be supported by efficient and reliable signalling, which has not been extensively examined and will be …
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An FPGA implementation of a sleep enabled PON system
… video-on-demand applications, Passive Optical Network (PON) has been widely considered as one of the most promising solutions for broadband access. Environmental concerns motivated network designers to lower energy consumption of optical access networks. A well-known approach to reduce energy …
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Inter-flow consistency: novel SDN update abstraction for supporting inter-flow constraints
Software Defined Networks (SDN) are opening a new era in the world of networking by decoupling the data plane and control plane. With the centralized control plane, updating the networks become much more convenient to the network operators. However, due to the distributed nature of the data plane, …
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Performance evaluation of a communication network
… of a specific X.25 Value Added Communication Network (VAN), comprising a Network Administrator and a cluster of Network Concentrators (NCs). Detailed models of the network elements are developed, and system performance is analyzed in terms of network response time for the terminal users …
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Machine Learning–Based Detection of Network Failures in Core Network Cellular Data
The increasing complexity of mobile networks and the large volume of traffic data generated by multiple network elements make it difficult for Mobile Network Operators (MNOs) to accurately identify operational irregularities and reliably distinguish true network failures from normal network …
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Application of base station with array of intelligent antennas in the energy distribution sector
… reason for this is the need to have a smarter network, in order to reduce the time of power interruption. For such applications, communication using Radio Frequency is preferred because this solution is more reliable than 3G/4G and cheaper than fiber optics. In this context, it is of utmost …
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Design of a Transport Layer Protocol for 4G Wireless Systems, Mobility
Mobility computing is the network-access paradigm of the future. Future network protocols will be 4G defined over an entirely packet-switched network with digital network elements, high bandwidth and built-in network security. The bandwidth provided will be 100Mbps for stationary objects and 20 …
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The effects of part commonality on product development lead time
Nortel Networks, a leading global supplier of telecommunications equipment, is engaged in an increasingly competitive global market place. Within this market, Nortel Networks is positioning itself as the leader of global network transformation. The vision of the new transformed network is one in …
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Loneliness, Social Connection, and Quality of Life: A Complex Network and Ecological Momentary Assessment Analysis
… and identified multiple subgroups per model. Network elements were more pivotal than demographics in comprising nodes, underscoring the importance of examining interpersonal functioning and psychological health in an idiographic, high density data strategy. Items related to emotional …
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Unraveling the Reconfiguration Dynamics of Silver Nanowire Networks under Electrothermal Stress
… including a shaky supply chain and brittleness. Networks of silver nanowires show many advantages over ITO, but they suffer from problems with durability. In this work, we focus on electrothermal instability and provide new insights into the electrothermal drivers of silver nanowire network …
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Self-healing solutions for LTE evolved packet core
… With technological advancement of the wireless networks, dependencies and business impact of the mobile network services have increased phenomenally. It is, therefore, crucial to address the issues regarding network infrastructure or service failure. In this thesis, a self-healing solution is …
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A modelling and networking architecture for distributed virtual environments with multiple servers.
… running on several computers connected through a network. When VEs are distributed on multiple computers across a network, we call this a Distributed Virtual Environment (DVE). Virtual Environments can benefit greatly from distributed strategies.A networked VE system based on the Client-Server …
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Optimizing the POX controller with database systems
Software-defined networking (SDN) brings new opportunities and challenges to the current design of networks and how networks can be managed. In comparison to the traditional network architecture, SDN simplifies the control of the network by using a logically centralized controller and a set of …
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Kurzfristprognosen von Verkehrszuständen auf Basis von Verfahren der Mustererkennung und von dynamischen Routensuch- und Umlegungsverfahren
… resistance to further expansion of road networks, force consideration of more efficient usage of existing traffic infrastructure. This task requires an efficient traffic management system with intelligent traffic control measures and information for drivers. This also requires systems for …
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