Dissertations / Theses on the topic 'Network management'
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Rivas, Antonio Canales. "Network management using active networks." Thesis, De Montfort University, 2006. http://hdl.handle.net/2086/4781.
Full textWells, Daniel David. "Network management for community networks." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1006587.
Full textSundaresan, Latha. "Simple network management protocol /." Online version of thesis, 1995. http://hdl.handle.net/1850/12254.
Full textPost, David L. "Network Management: Assessing Internet Network-Element Fault Status Using Neural Networks." Ohio : Ohio University, 2008. http://www.ohiolink.edu/etd/view.cgi?ohiou1220632155.
Full textYuan, Fenghua. "Lightweight network management design for wireless sensor networks." Online access for everyone, 2007. http://www.dissertations.wsu.edu/Thesis/Fall2007/F_Yuan_081307.pdf.
Full textLim, Kok Seng. "Analysis of network management protocols in optical networks." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Mar%5FLim%5FK.pdf.
Full textConner, Steven. "Automated distribution network planning with active network management." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/28818.
Full textWetzel, Paul A. "Network policy management." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1999. http://handle.dtic.mil/100.2/ADA376856.
Full text"September 1999". Thesis advisor(s): Geoffrey Xie, Gilbert Lundy. Includes bibliographical references (p. 215-224). Also available online.
Reupold, Andrea. "Learning Network Management." Diss., lmu, 2009. http://nbn-resolving.de/urn:nbn:de:bvb:19-105508.
Full textLiu, Guanglei. "Management and Control of Scalable and Resilient Next-Generation Optical Networks." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14610.
Full textDobrydney, John F. "IPv6 tactical network management." Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Sep/09Sep_Dobrydney.pdf.
Full textThesis Advisor(s): Bordetsky, Alex. "September 2009." Description based on title screen as viewed on November 9, 2009. Author(s) subject terms: IP, tactical sensor network, TNT, Internet Protocol Version 6, network management, quality of service, DiffServ, information management. Includes bibliographical references (p. 197-202). Also available in print.
Gabdurahmanov, Murat, and Simon Trygg. "Analysis and Evaluation of Network Management Solutions : A Comparison of Network Management Solutions Suitable for Networks with 2,500+ Devices." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-188793.
Full textVissa företag använder idag suboptimala och föråldrade övervakningsssystem för sina nätverk. Med tanke på det stora antalet olika tjänster som efterfrågas av användare finns det ett stort behov av att anpassa nätverksstrukturen för att stödja de nuvarande och potentiellt framtida kraven. Som ett resultat finns det ett behov av nya övervakningssystem (Network Management Solutions (NMSs)) för nätverken. Syftet med detta examensarbete är att hjälpa ett företag som använder NMS:en Local Area Network (LAN) Management Solution (LMS). LMS utecklades av Cisco för att hantera lokala nätverk (LANs). Men med tiden har företagets krav förändrats och de har därför behövt expandera sitt nätverk mer än väntat. Dessutom är LMS endast utformad för att hantera enheter tillverkade av Cisco, medan företaget vill ha en universal lösning med stöd för enheter från många olika tillverkare. Denna rapport presenterar en analys av deras nuvarande system, samt föreslår möjliga lösningar som kan ersätta detta. Den nya lösningen ska vara långvarig samt ska uppfylla alla krav företaget ställt. För att hitta lämpliga lösningar har en grundlig utvärdering av den befintliga NMS:en samt en analys av de ställda kraven utförts. Denna analys gav goda insikter i olika aspekter av deras nuvarande system. En lämplig lösning hittades genom att följa en trestegsmetod. Metoden utgick från 82 möjliga lösningar, som efter flera steg av filtrering resulterade i de mest lämpade ersättningssystemen. Två NMS:er har föreslagits som lika lämpliga ersättare: IBM Tivoli Netcool/OMNIbus och ManageEngine OpManager. Oavsett vilken som väljs, har de båda följande fördelar jämfört med den nuvarande NMS:en: de är båda väldigt stabila lösningar som klarar av en stor mängd hanterade enheter; de är universella lösningar med stöd för en stor mängd olika enheter, dessutom går det även att lägga till eget stöd för enheter vid behov; de är användarvänliga och har möjlighet till att anpassa egna gränssnitt; samt att de båda har en professionell first-line teknisk support placerad lokalt i landet.<p>
Zhou, Lin. "Active network management and uncertainty analysis in distribution networks." Thesis, University of Bath, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.675697.
Full textHia, Henry Erik. "Secure SNMP-Based Network Management in Low Bandwidth Networks." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/32126.
Full textMaster of Science
Behjati, Mohammadreza. "Self-organising network management for heterogeneous LTE-advanced networks." Thesis, Brunel University, 2015. http://bura.brunel.ac.uk/handle/2438/10972.
Full textZorzi, Francesco. "Localization and network management in radio and underwater networks." Doctoral thesis, Università degli studi di Padova, 2010. http://hdl.handle.net/11577/3426983.
Full textNegli ultimi anni, le reti wireless di sensori (WSN) sono state molto studiate a causa delle numerose applicazioni in cui possono essere usate, come il monitoraggio ambientale, la domotica, la localizzazione e il tracking di utenti mobili. Le forti limitazioni dei nodi sensori in termini di energia, processamento, memoria e affidabilita', lasciano ancora aperti molti problemi per la ricerca. Questa tesi affronta due problemi molto importanti relativi alle reti wireless di sensori: la localizzazione e la gestione del traffico. Un'accurata localizzazione dei sensori e' importante per molte applicazioni per WSN, come monitoraggio, routing, scheduling, data fusion e molte altre. Tipicamente, gli algoritmi di localizzazione si basano su una infrastruttra di nodi, detti nodi ancora che conoscono la loro posizione geografica. Questi nodi trasmettono in broadcast le loro coordinate agli altri nodi della rete, che da queste informazioni ricavano la loro posizione tramite tecniche di stima. L'argomento e' stato largamente studiato, sia con simulazioni sia, piu' recentemente, con testbed sperimentali. Ciononostante, l'accuratezza ottenuta dalla maggior parte degli algoritmi proposti e' ancora insufficiente, soprattutto in ambienti interni. E' quindi necessario cercare nuove metodologie e nuovi approcci. In questa tesi, il problema e' stato affrontato da diversi punti di vista, in modo da capire in maniera piu' chiara e accurata i diversi aspetti che lo caratterizzano. Come conseguenza, abbiamo raccolto una vasta quantita' di dati che potrebbero apparire come non molto legati uno all'altro, ma che in realta' rientrano tutti nello stesso progetto di ricerca. Come primo passo, abbiamo confrontato algoritmi di localizzazione proposti in letteratura in uno scenario indoor e con nodi statici, stimando la distanza tra i nodi utilizzando la potenza del segnale ricevuto (RSSI). I risultati ci hanno permesso di capire le potenzialita' e i limiti dei piu' diffusi algoritmi di localizzazione in ambiente indoor e in un testbed reale. In particolare, abbiamo osservato il grande impatto che ha sulle prestazioni di localizzazione l'aleatorieta', data dal termine di shadowing, della misura di potenza ricevuta. Abbiamo quindi cercato delle strategie per ridurre la varianza di questo termine aleatorio. A questo scopo, abbiamo studiato l'effetto della frequenza della portante, utilizzando una stima della potenza ricevuta multi--canale, e l'impatto dell'anisotropia dell'antenna sulle oscillazioni dei valori di potenza ricevuta. Entrambi glil studi sono stati fatti con misure reali raccolte in diversi testbed. Successivamente, abbiamo analizzato il problema del posizionamento dei nodi ancora, dopo aver osservato l'incidenza che questo ha sull'accuratezza della localizzazione. Abbiamo confrontato il posizionamento ottimo dei nodi ancora usando sia una tecnica esaustiva, ma computazionalmente molto complessa, sia uno schema euristico che raggiunge prestazioni molto vicine all'ottimo pur mantenendo una complessita' lineare con il numero di ancore. Guardare alle prestazioni di localizzazione separando i diversi effetti degli algoritmi, dei parametri di canale e del posizionamento dei nodi ancora e' stato importante per capire il contributo dei diversi aspetti all'interno dell'errore di localizzazione e quanto sia possibile migliorare la precisione della localizzazione ottimizzando uno di questi aspetti, che solitamente viene scelto in base allo scenario e alle risorse disponibili. Quindi, abbiamo incluso nel nostro scenario anche nodi mobili. All'inizio abbiamo considerato un robot mobile (AMR) che poteva interagire con i sensori, ma anche capace di localizzarsi grazie all'odometria. Facendo leva sulla complementarieta' della rete di sensori e del robot mobile, abbiamo studiato e implementato un algoritmo di localizzazione e mappatura simultanea (SLAM), problema che consiste nel creare la mappa di un'area senza nessuna conoscenza a priori dell'ambiente e in contemporanea localizzare i nodi sensore confrontando le informazioni provenienti dai sensori e quelle ricavate dall'odometria del robot. Poi abbiamo considerato uno scenario piu' generale composto da nodi mobili ed eterogenei, con diverse capacita' di autolocalizzazione, che possono interagire uno con l'altro in modo opportunistico, scambiandosi informazioni di localizzazione con altri nodi che occasionalmente si trovano in prossimita'. Le prestazioni di questo schema sono state analizzate in un modello matematico. Abbiamo studiato un approccio a Massima Verosimiglianza (ML), uno basato su Linear Matrix Inequalities (LMI) e una semplice strategia euristica per definire gli algoritmi di localizzazione opportunistica. La validita' del modello matematico e' stata confermata attraverso misure sperimentali. Abbiamo considerato due scenari principali, uno in cui un nodo puo' contare su una sola interazione opportunistica e uno dove possono essere fatti contatti multipli mentre il nodo resta nella stessa posizione. Abbiamo analizzato le diverse tecniche, trovando che nel primo caso, se le informazioni di autolocalizzazione del nodo cooperatore e di ranging sono buone, l'algoritmo euristico ha buone prestazioni, a volte addirittura meglio della Massima Verosimiglianza, che invece e' estremamente robusto e riesce a migliorare la stima di localizzazione anche in scenari molto difficili. Se invece sono disponibili numerose interazioni, allora l'algoritmo euristico porta prestazioni scarse ed e' meglio utilizzare la tecnica LMI, specialmente utilizzando l'informazione di ranging. Inoltre l'LMI non richiede una conoscenza della posizione iniziale del nodo incognito. Lo scenario statico e' stato molto utile per studiare in maniera efficace la localizzazione mobile. La scelta degli algoritmi proposti e dello scenario, i parametri di simulazione e i limiti, sono strettamente legati a quello che abbiamo studiato riguardo al canale wireless e alle prestazioni di localizzazione nei lavori precedenti. L'idea dello scenario opportunistico infatti e' venuta a partire da due considerazioni: la limitata precisione della localizzazione con ancore basata su RSSI in uno scenario reale e la buona precisione nella stima di distanza con RSSI quando la distanza e' limitata. Affianco al principale filone di ricerca riguardante la localizzazione nelle WSN, durante il dottorato di ricerca abbiamo approfondito anche altri argomenti, come la gestione del traffico e le reti di sensori sottomarine, che non sono direttamente collegate con il tema principale, ma sono comunque di grande interesse scientifico. I risultati piu' significativi ottenuti in questi temi sono stati inseriti all'interno della tesi per due motivi. Innanzitutto, questi argomenti appartengono al contesto delle reti di sensori wireless, condividendo alcune caratteristiche di base quali l'assunzione di semplicita' e le limitazioni energetiche. Inoltre, il trattare campi diversi ma correlati, puo' aprire nuove prospettive a problemi noti, contribuendo cosi' all'innovazione della ricerca. Il secondo problema affrontato in questa tesi e' stato la gestione del traffico in reti di sensori wireless. Spesso, i nodi di una rete di sensori mandano i pacchetti ad un nodo comune, chiamato sink. Questo modello di traffico, quando il carico cresce, puo' portare a problemi di congestione, causando perdita di pacchetti, ritardi e spreco di energia. Le soluzioni proposte in letteratura solitamente cercando di individuare l'inizio di una congestione, utilizzando in questo compito molti nodi, talvolta l'intera rete. Il protocollo proposto, chiamato Efficient Packet Converge Casting (EPC$^2$), mitiga la congestione al sink, ma coinvolgnedo solo un numero fissato di nodi, i vicini del sink. Un altro scenario che abbiamo analizzato in questa tesi, sono state le reti sottomarine di sensori che, come nel caso delle reti radio, possono essere utilizzato per molteplici applicazioni e quindi hanno ricevuto molta attenzione dal mondo della ricerca. Similmente alle reti radio, l'efficienza energetica e' un problema molto sentito. I nodi sono alimentati a batteria ed e' molto importante incrementare la vita della rete il piu' possibile. La profonda diversita' dell'ambiente in cui i nodi sono disposti crea nuove sfide per la ricerca che richiedono la progettazione di nuovi protocolli. Abbiamo affrontato il problema dell'efficienza energetica in reti sottomarine con due diversi approcci. Abbiamo studiato l'effetto del duty--cycle and della densita' dei nodi sul consumo energetico della rete, assumendo che i nodi potessero usare diversi livelli di potenza in trasmissione. Quindi abbiamo proposto uno schema di utilizzazione della banda disponibile per ottimizzare il consumo energetico, facendo leva sulla forte relazione tra distanza, frequenza e attenuazione del canale. Entrambe le soluzioni sono molto semplici e adatte ai dispositivi sottomarini che hanno forti limitazioni. Inoltre non richiedono una unita' centrale per essere coordinate, ma operano in modo asincrono e distribuito.
Gateau, James B. "Extending Simple Network Management Protocol (SNMP) beyond network management a MIB architecture for network-centric services." Thesis, Monterey, Calif. : Naval Postgraduate School, 2007. http://bosun.nps.edu/uhtbin/hyperion.exe/07Mar%5FGateau.pdf.
Full textThesis Advisor(s): Alex Bordetsky. "March 2007." Includes bibliographical references (p. 161-163). Also available in print.
Sharma, Sachin. "Integrated Backhaul Management for Ultra-Dense Network Deployment." Thesis, KTH, Kommunikationssystem, CoS, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-159447.
Full textSiu, Joao Baptista. "Network configuration management systems." Thesis, University of Macau, 2001. http://umaclib3.umac.mo/record=b1447841.
Full textZhang, Xiaowen. "Resource Management and Optimization in Wireless Mesh Networks." FIU Digital Commons, 2009. http://digitalcommons.fiu.edu/etd/173.
Full textJun, Andrew Do-Sung. "A virtual network approach to network resources management." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0027/MQ34135.pdf.
Full textMistry, Bharat. "Network management issues for the optical access network." Thesis, Manchester Metropolitan University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320491.
Full textSmyth, Padhraic, Todd Chauvin, Gordon Oliver, and Joseph Statman. "NETWORK MANAGEMENT TOOLS FOR A GPS DATALINK NETWORK." International Foundation for Telemetering, 1991. http://hdl.handle.net/10150/613123.
Full textThe availability of GPS (Global Position Satellite) information in real-time via the RAJPO Datalink system will significantly increase the capacity of flight test and training ranges in terms of missions supported. This increase in mission activity will in turn impose more demands on mission planning in the range operations environment. In this context, network management tools which can improve the capability of range personnel to plan, monitor, and control network resources, are of significant interest. In this paper we describe the application of both simulation and artificial intelligence techniques to develop such network management tools.
Naidoo, Vaughn. "Policy Based Network management of legacy network elements in next generation networks for Voice Services." Thesis, University of the Western Cape, 2002. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_5830_1370595582.
Full textAl-Bayatti, Ali Hilal. "Security management for mobile ad hoc network of networks (MANoN)." Thesis, De Montfort University, 2009. http://hdl.handle.net/2086/2417.
Full textBashar, Abul. "On the application of Bayesian networks for autonomic network management." Thesis, Ulster University, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.646023.
Full textWang, Hao. "Performance modelling of network management schemes for mobile wireless networks." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/13192.
Full textMoore, Michael S., Evan T. Grim, Ganesh U. Kamat, and Myron L. Moodie. "MANAGEMENT OF NETWORK-BASED FLIGHT TEST SYSTEMS." International Foundation for Telemetering, 2007. http://hdl.handle.net/10150/604409.
Full textNetwork-based instrumentation systems are rapidly replacing traditional fixed serial interconnected instrumentation in both commercial and military flight test environments. Modern network-based flight test systems are composed of large numbers of devices including high-speed network switches, data acquisition devices, recorders, telemetry interfaces, and wireless network transceivers, all of which must be managed in a coordinated fashion. Management of the network system includes configuring, controlling, and monitoring the health and status of the various devices. Configuration by hand is not a realistic option, so algorithms for automatic management must be implemented to make these systems economical and practical. This paper describes the issues that must be addressed for managing network-based flight test systems and describes a network management approach that was developed and employed to manage a large-scale network-based flight test system.
Frias, Carolina, and Jenny-Ann Ruhlander. "Management accounting in horizontal networks." Thesis, Linköping University, Department of Management and Economics, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1380.
Full textBackground: The management accounting coordination in a horizontal network of small and medium sized companies entails numerous questions and potential complications that may vary according to the extent of cooperation chosen. Categorizing network co-operations along an imaginary market–hierarchy continuum might offer the theoretical foundation needed to further understand networks and as a consequence illuminate the link to the diverse management accounting issues.
Purpose: To analyze the management accounting systems in different forms of horizontal network co-operations.
Delimitations: It is not within the purpose of the thesis to discuss the various reasons why cooperative relationships are established in the first place, nor how they develop. Proceed of the study: A multiple case study of three Swedish networks composed of small/medium-sized firms was carried out with the help of thirteen interviews.
Conclusions: Empirical support is offered for both the business and functional network types. The model of Dahlgren et al. does not take into account that the degree of integration of the network supporting activities does not necessarily have to entail the equivalent degree of integration regarding the management accounting system. Hence, the typology of networks cannot be said to be conveniently applicable to study all horizontal networks, as the model may leave out certain significant dimensions that obstruct the understanding of a network.
Anjali, Tricha. "DiffServ/MPLS Network Design and Management." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5191.
Full textAitken, William Theodore Carleton University Dissertation Engineering Electrical. "Network management standards from the fault management perspective." Ottawa, 1992.
Find full textAhmadi, Ali Reza. "Distribution network optimisation for an active network management system." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/6341.
Full textBoudemagh, Nedjoua. "Optimisation in network asset management." Thesis, University of Salford, 2007. http://usir.salford.ac.uk/26588/.
Full textSheng, Wenbo. "Wireless ATM network management modeling." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0013/MQ32246.pdf.
Full textMa, Haiqing. "Network management by mobile agents." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ35073.pdf.
Full textCoffield, D. T. "Network and distributed systems management." Thesis, Lancaster University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380320.
Full textGuo, Nina X. (Nina Xiaoyu). "Scalable information-sharing network management." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/66309.
Full textThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student submitted PDF version of thesis.
Includes bibliographical references (p. 56).
This thesis analyzes scalable information-sharing network management. It looks into one of the large problems in network management today: finding information across different network domains. Information-sharing network management is a method to solving the problem, though it is important to make it scalable. The solution proposed uses the Publish-Subscribe Internet Routing Paradigm (PSIRP) inter-domain design as the base structure. The design borrows from Border Gateway Protocol ideas and uses the Chord protocol as one of the key methods of finding information. The conclusion after analyzing the scalability of PSIRP is that its use of Chord gives it an advantage that allows a tradeoff between performance and distribution.
by Nina X. Guo
M.Eng.
Arulselvan, Ashwin. "Network model for disaster management." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0024855.
Full textNelson, Mark D. "Integrated network application management (INAM)." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Dec%5FNelson.pdf.
Full textThesis advisor(s): Alex Bordetsky. Includes bibliographical references (p. 85-86). Also available online.
Nuangjamnong, Chompu. "An investigation of network management." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2009. https://ro.ecu.edu.au/theses/1836.
Full textRichart, Matías. "Resource allocation and management techniques for network slicing in WiFi networks." Doctoral thesis, Universitat Politècnica de Catalunya, 2019. http://hdl.handle.net/10803/668043.
Full textNetwork slicing ha estat recentment proposat com un dels aspectes claus de les xarxes 5G i s'espera que permeti afrontar les creixents demandes de rendiment que tindran aquests sistemes. Fer slicing consisteix en fer particions d'una xarxa física compartida en diverses parts (slices) lògiques autocontenidas que poden ser adaptades per oferir diferents requeriments funcionals o de rendiment. Més encara, una característica clau del paradigma de slicing és el de proveir aïllament dels recursos així com permetre un ús eficient dels mateixos. En aquest context, una slice es pot considerar com una xarxa virtual d'extrem a extrem que permet als operadors d'infraestructura arrendar els seus recursos a proveïdors de servei (arrendatari) mitjançant el desplegament dinàmic i sota demanda de slices. Els arrendataris poden tenir control complet sobre els recursos i funcions de la slice i utilitzar-los per satisfer les demandes dels seus clients. Treballs recents sobre slicing en xarxes d'accés sense fil s'han enfocat en arquitectures generals i esquemes de gestió per al desplegament de slicing. En aquest sentit, no s'ha aprofundit en detalls de com s'implementen i controlen les slices en els dispositius sense fils. A més, encara hi ha algunes tècniques per al control de slices, la majoria es concentren en tecnologies per a xarxes mòbils i no tenen en compte les xarxes WiFi malgrat la seva creixent rellevància i omnipresència. En aquest escenari, aquesta tesi contribueix al problema de slicing en xarxes WiFi proposant una solució per implementar i controlar slices en punts d'accés WiFi. El treball es concentra en slicing amb qualitat de servei (QoS Slicing), una variant complexa del problema on les slices tenen requeriments de rendiment específics. Les principals contribucions de la tesi es divideixen en tres: (1) una detallada anàlisi del problema de network slicing en xarxes d'accés sense fil i en particular en WiFi, així com un estudi i definició dels problemes de QoS Slicing, (2) un model i mecanisme per a l'assignació de recursos en dispositius WiFi, i (3) una solució per QoS Slicing que implementa i controla slices amb requeriments de rendiment en punts d'accés WiFi. Donada la novetat del concepte de slicing i la complexitat del problema, es va realitzar un estudi detallat del problema de slicing on es proveeix una definició completa del concepte de slicing. A més, s'introdueixen els dos principals problemes del slicing: l'assignació de recursos i l'aïllament. En aquest sentit, aquesta tesi contribueix amb una estratègia original on el problema d'assignació de recursos es divideix en dues tasques: l'assignació dinàmica de recursos i el control de l'assignació. Com un pas previ a la construcció d'una solució per QoS Slicing, es proposa un mètode original per a la distribució proporcional de recursos en xarxes WiFi mitjançant el control del temps de transmissió. El mecanisme proposat (anomenat ATERR) es basa en considerar el temps de transmissió com el recurs a ser compartit i assignat. També es va desenvolupar un model analític de l'algoritme ATERR del qual es poden obtenir les capacitats i limitacions del mecanisme. La validesa del model proposat és estudiada mitjançant una avaluació basada en simulacions sobre l'entorn NS-3. Finalment, pel que fa al problema de QoS Slicing, es van considerar dos requeriments diferents: una garantia de taxa de transmissió mínima i un màxim de latència permès. El problema d'assignació de recursos per a les diferents slices es va formular com un problema d'optimització estocàstica on els requeriments de cada slice es modelen com una restricció. Es va elaborar una solució al problema anterior utilitzant la teoria d'optimització de Lyapunov per obtenir un problema determinista aproximat. Amb aquesta solució, es va desenvolupar un algoritme d'assignació del temps de transmissió per a dispositius WiFi.
Matebese, Sithembiso. "A decentralized multi-agent based network management system for ICT4D networks." Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1019853.
Full textBanerji, Pratip K. "An analysis of network management traffic and requirements in wireless networks." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/42744.
Full textMasuabi, Francis Mphakiseng. "A hybrid network/host mobility management scheme for next generation networks." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/12627.
Full textThe author proposes a hybrid network/host interworking scheme to allow the MN to transition smoothly between different access networks supporting two distinct mobility approaches.
Mohan, Raj. "XML based adaptive IPsec policy management in a trust management context /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02sep%5FMohan.pdf.
Full textThesis advisor(s): Cynthia E. Irvine, Timothy E. Levin. Includes bibliographical references (p. 71-72). Also available online.
Fu, Zhi. "Network Management And Intrusion Detection For Quality of Network Services." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20010710-152055.
Full textThe explosive growth in worldwide communication via the Internet has increased the reliance oforganizations and individuals on the electronically transmitted information, which consequentlycreated rising demands to protect data from information leakage, corruption or alteration duringtransmission. Various security service requirements are demanded among different applications andcustomers with consideration of respective data sensitivity level, performance requirement andmonetary investment. It becomes important to provide end-to-end security service commitment tosatisfy the diverse customers needs. We expect the Quality of Protection (QoP) to fulfill end-to-endsecurity service commitment to be integrated within the emerging QoS networks to support secure QoSInternet service. For clarity, we call both of QoP and QoS ?Quality of Network Services? (QoNS).The security issues surrounding the QoNS (QoP and QoS) provisioning have been studied in my PhDresearch. The thesis is composed of two main parts, i.e. QoP security and QoS security. First, thepolicy issues of QoP security service are analyzed and automatic policy generation algorithms arepresented. Furthermore, a signaling protocol is designed to provide end-to-end security service forQoP. The protocol is designed to be secure to protect messages against possible forgery andmodification attacks. Second, the threats to the QoS signaling protocol RSVP are analyzed andcountermeasures are proposed. In addition, the intrusion detection methods for QoS attacks directly ondata flow are investigated and experimented.
Puff, Chad J. "Network management system for tactical mobile ad hoc network segments." Thesis, Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/5462.
Full textMobile Ad Hoc Networking (MANET) technologies are highly desirable in tactical environments because they are able to communicate with neighboring devices over one or more hops in order to extend connectivity to areas where a fixed infrastructure is not available or is not possible. There are many factors which can influence the performance and reliability of a MANET. Communications links within the MANET are continuously fluctuating due to device location, power, or environmental factors. Devices within the MANET can enter the network and then disappear due to the devices losing connectivity because of their physical location relative to other nodes within the network. A network management system (NMS) that can provide for MANET administration in both simulation-based and real-time operational environments provides additional value for this network. The objectives for this network management system is to allow users to predict, monitor, and control network behavior, this specifically includes viewing and remotely managing variables such as node status, node location, attached equipment, channel selection, frequencies, error rates, and network utilization.
Steenkamp, Leon. "Wireless sensor network monitoring using the Simple Network Management Protocol." Thesis, Cape Peninsula University of Technology, 2012. http://hdl.handle.net/20.500.11838/1139.
Full textWireless sensor networks (WSNs) have long been separate networks using non-standard, custom and application speci c protocols. The arrival of IPv6 over Low power Wireless Personal Area Network (6LoWPAN) changes this, with the Internet Protocol (IP) being the common protocol between conventional IP networks and Wireless Sensor Networks. Through the use of 6LoWPAN implementations like blip, developed for the WSN operating system TinyOS, it is possible to make use of the advantages that the common IP layer brings. This includes the reuse of techniques, protocols and software that are already developed for, and in use on, conventional IP networks.One such protocol is the Simple Network Management Protocol (SNMP), which is a User Datagram Protocol (UDP) based protocol used for monitoring and management in conventional IP networks. This work describes an implementation of the rst version of the SNMP in nesC for TinyOS using the blip 6LoWPAN implementation. The SNMPv1 software agent imple- mentation requires no modi cation to the 6LoWPAN stack and responds to standard SNMP get and set requests. This means that standard SNMP software can be used to communicate with the implemented SNMP software agent. Therefore network monitoring packages like Nagios and Cacti can be used to monitor wireless sensor networks.Relevant background information is discussed, ranging from the division of commu- nication between network nodes into logical layers, to similar work done and the Simple Network Management Protocol. The implementation of the SNMP software agent is ex- amined, along with the anatomy of an SNMP GetRequest message in aid of understanding the structure of SNMP messages.The SNMP agent implementation is then tested against network monitoring tools like Cacti, Nagios and applications from the Net-SNMP package. The results verify the correct operation of the SNMP software agent and demonstrate the added functionality that the software agent provides.
Cho, Daewoong. "Network Function Virtualization (NFV) Resource Management For Low Network Latency." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/17256.
Full textLee, Myung Sub 1953. "PC-based design of network management package for broadband network." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276772.
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