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Dissertations / Theses on the topic 'Traffic matrix'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

Wang, Judith. "Wavelet-based traffic matrix modeling." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=96944.

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The traffic matrix is essential for many network management tasks because it provides the amount of traffic that flows between every origin-destination (OD) pair in a network. We focus on two traffic matrix problems: compression and estimation. Traffic matrices contain substantial amounts of data because they are collected at short timescales over long periods. We investigate techniques to compress traffic matrices using wavelet transforms, which allows us to isolate common underlying patterns present within traffic matrix datasets. In addition, it is expensive for network operators to measure
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2

Eum, Suyong, and suyong@ist osaka-u. ac jp. "Traffic Matrix Estimation in IP Networks." RMIT University. Electrical and Computer Engineering, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080215.155526.

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An Origin-Destination (OD) traffic matrix provides a major input to the design, planning and management of a telecommunications network. Since the Internet is being proposed as the principal delivery mechanism for telecommunications traffic at the present time, and this network is not owned or managed by a single entity, there are significant challenges for network planners and managers needing to determine equipment and topology configurations for the various sections of the Internet that are currently the responsibility of ISPs and traditional telcos. Planning of these sub-networks typically
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3

Marakov, Dimitri. "Contributions to the traffic matrix problem." Télécom Bretagne, 2007. http://www.theses.fr/2007TELB0058.

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This thesis addresses the traffic matrix estimation problem. Knowledge about the origin-destination (OD) traffic matrix (TM) allows us to solve problems in network engineering; the OD traffic matrix gives us a valuable information about who is communicating with whom in a network, at any given time. Traffic analysis, based on detailed packet or flow level measurements, usually not available throughout a large network due to hardware limitations or/and security reasons. An alternative approach is to use mathematical and statistical techniques for the estimation using the incomplete data accessi
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4

Ros, Roca Xavier. "Dynamic OD matrix estimation exploiting ICT traffic measurements." Doctoral thesis, Universitat Politècnica de Catalunya, 2021. http://hdl.handle.net/10803/672898.

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During the last decades, urban mobility has become the main concern for city councils and transportation operators. The main problem is the traffic congestion that easily appears in urban networks, producing negative economic impacts for the associated cost and, what is becoming more relevant from the sustainability point of view. In this context, the transportation operators and planners make use of traffic simulation models that assist their strategic decisions aiming at improving the mentioned problems. The dynamic OD matrices estimation problem is a crucial step in transportation m
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Gan, Liping. "Optimal traffic counting location for origin-destination matrix estimation /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202002%20GAN.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2002.<br>Includes bibliographical references (leaves 104-106). Also available in electronic version. Access restricted to campus users.
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6

Respati, Sara Wibawaning. "Network-scale arterial traffic state prediction: Fusing multisensor traffic data." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/202990/1/Sara%20Wibawaning_Respati_Thesis.pdf.

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Road traffic congestion is an increasing societal problem. Road agencies and users seeks accurate and reliable travel speed information. This thesis developed a network-scale traffic state prediction based on Convolutional Neural Network (CNN). The method can predict the speed over the network accurately by preserving road connectivity and incorporating historical datasets. When dealing with an extensive network, the thesis also developed a clustering method to reduce the complexity of the prediction. By accurately predict the traffic state over a network, traffic operators can manage the netw
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7

Timms, Paul Martin. "A Bayesian approach to origin-destination trip matrix estimation." Thesis, University of Leeds, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.257965.

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8

Kim, Seung-Jun. "Simultaneous calibration of a microscopic traffic simulation model and OD matrix." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4409.

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With the recent widespread deployment of intelligent transportation systems (ITS) in North America there is an abundance of data on traffic systems and thus an opportunity to use these data in the calibration of microscopic traffic simulation models. Even though ITS data have been utilized to some extent in the calibration of microscopic traffic simulation models, efforts have focused on improving the quality of the calibration based on aggregate form of ITS data rather than disaggregate data. In addition, researchers have focused on identifying the parameters associated with car-following and
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9

Collins, Jeremy James. "Design of alphanumeric dot matrix displays for use in traffic management." Thesis, University of Southampton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336147.

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10

Behara, Krishna Nikhil Sumanth. "Origin-destination matrix estimation using big traffic data: A structural perspective." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/132444/1/Krishna_Behara_Thesis.pdf.

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With ever increasing traffic demand, cities are facing more serious problems from traffic congestion. It is extremely important to have an accurate estimation of travel demand for strategic planning and control. Lack of such knowledge before implementing major transport infrastructure projects could result in huge economic losses. Thus, this research develops new methods using big traffic data and are thoroughly tested on the Brisbane network. These methods can be readily integrated into the existing state-of-the-art and practice for a better estimation of travel demand.
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11

Zeng, Jianfeng. "Time Series Forecasting using Temporal Regularized Matrix Factorization and Its Application to Traffic Speed Datasets." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1617109307510099.

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12

Peterson, Anders. "The Origin-Destination Matrix Estimation Problem : Analysis and Computations." Doctoral thesis, Norrköping : Dept. of Science and Technology, Linköpings universitet, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-8859.

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13

Komolafe, Olufemi O. "High-speed optical packet switching over arbitrary physical topologies using the Manhattan Street Network." Thesis, University of Strathclyde, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366847.

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14

Bertoncini, Bruno Vieira. "Uma proposta de estimação da matriz OD a partir dos fluxos de tráfego observados nas interseções da rede de transportes." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18144/tde-18022011-152600/.

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A meta do trabalho é propor e testar a hipótese que a contagem de tráfego nas interseções da rede de transportes, ao invés de contagem de tráfego nos arcos, reduz o grau de indeterminação e torna mais precisa a matriz OD estimada pelo modelo sintético. Ademais, é proposto e detalhado um método de estimação da matriz OD através de médias sucessivas (MEMS). É apresentada a descrição matemática das propostas e o detalhamento dos experimentos elaborados para testá-las. Três métodos de estimação, QUEENSOD, TransCAD e MEMS, foram utilizados na verificação da hipótese. A inserção de \"arcos virtuais\
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Sarkar, Nikhil Chandra. "Microscopic modelling of the area-based traffic flow." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/129869/9/Nikhil%20Chandra%20Sarkar%20Thesis.pdf.

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Area-based (i.e., non-lane based) heterogeneous traffic (as in developing countries) differs significantly from lane-based homogeneous traffic (as in developed countries). In area-based traffic, drivers generally ignore the lane markings and perceive the entire road space while progressing longitudinally. Traditional car-following and lane-changing models are not directly applicable to modelling such driving behaviour. This research aimed to microscopically model the dynamic of the subject vehicle in area-based traffic flow. The modelling was conducted in two steps. In Step 1, discrete choice-
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16

Chi, Hongbo. "An Improved Framework for Dynamic Origin-Destination (O-D) Matrix Estimation." FIU Digital Commons, 2010. http://digitalcommons.fiu.edu/etd/289.

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This dissertation aims to improve the performance of existing assignment-based dynamic origin-destination (O-D) matrix estimation models to successfully apply Intelligent Transportation Systems (ITS) strategies for the purposes of traffic congestion relief and dynamic traffic assignment (DTA) in transportation network modeling. The methodology framework has two advantages over the existing assignment-based dynamic O-D matrix estimation models. First, it combines an initial O-D estimation model into the estimation process to provide a high confidence level of initial input for the dynamic O-D e
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17

Michau, Gabriel E. "Link dependent origin-destination matrix estimation : nonsmooth convex optimisation with Bluetooth-inferred trajectories." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/103850/1/Gabriel%20Etienne_Michau_Thesis.pdf.

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This thesis tackles the traditional transport engineering problem of urban traffic demand estimation by using Bluetooth data and advanced signal processing algorithms. It proposes a method to recover vehicles trajectories from Bluetooth detectors and combining vehicle trajectories with traditional traffic datasets, traffic is estimated at a city level using signal processing algorithms. Involving new technologies in traffic demand estimation gave an opportunity to rethink traditional approaches and to come up with new method to jointly estimate origin-destinations flows and route flows. The wh
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18

Chang, David Keali'i. "Evaluation of the Accuracy of Traffic Volume Counts Collected by Microwave Sensors." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/5486.

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Over the past few years, the Utah Department of Transportation (UDOT) has developed a system called the Signal Performance Metrics System (SPMS) to evaluate the performance of signalized intersections. This system currently provides data summaries for several performance measures including: 1) Purdue Coordination Diagram, 2) Speed, 3) Approach Volume, 4) Purdue Phase Termination Charts, 5) Split Monitor, 6) Turning Movement Volume Counts, 7) Arrivals on Red, and 8) Approach Delay. There is a need to know the accuracy of the data that are being collected by the Wavetronix SmartSensor Matrix a
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19

Zambrano, Martínez Jorge Luis. "Efficient Traffic Management in Urban Environments." Doctoral thesis, Universitat Politècnica de València, 2019. http://hdl.handle.net/10251/129865.

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[ES] En la actualidad, uno de los principales desafíos a los que se enfrentan las grandes áreas metropolitanas es la congestión provocada por el tráfico, la cual se ha convertido en un problema importante al que se enfrentan las autoridades de cada ciudad. Para abordar este problema es necesario implementar una solución eficiente para controlar el tráfico que genere beneficios para los ciudadanos, como reducir los tiempos de viaje de los vehículos y, en consecuencia, el consumo de combustible, el ruido, y la contaminación ambiental. De hecho, al analizar adecuadamente la demanda de tráfico, es
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Hasselström, Emil, and Therese Sjögren. "Evaluation of Load Balancing Algorithms in IP Networks : A case study at TeliaSonera." Thesis, Linköping University, Department of Science and Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2842.

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<p>The principle of load balancing is to distribute the data load more evenly over the network in order to increase the network performance and efficiency. With dynamic load balancing the routing is undated at certain intervals. This thesis was developed to evaluate load balancing methods in the IP-network of TeliaSonera.Load balancing using short path routing, bottleneck load balancing and load balancing using MPLS have been evaluated. Short path routing is a flow sharing technique that allows routing on paths other than the shortest one. </p><p>Load balancing using short path routing is achi
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21

Albertsson, Pontus. "Occupant casualties in bus and coach traffic : injury and crash mechanisms." Doctoral thesis, Umeå : Deptartment of Surgical and Perioperative Sciences, Division of surgery, Umeå university, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-482.

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22

Knopp, Martin. "Návrh variantního dopravního připojení rozšiřovaného obchodního areálu v Modřicích." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226437.

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This diploma thesis deals with a proposal and a comparison of several options of transportation planning in the shopping area in the urban area of the town of Modřice, which is enlarging due to the building-up of new commercial centres. The first part of the thesis consists of a treatise on the field of traffic engineering, road-traffic telematics and ITS. The core of the work is formed by a detailed analysis of the current state and calibration of the transport simulation system AIMSUN. The following part shows three different ways of transportation in the given area and all of them include a
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23

Quasem, Tanvir. "Development of a Pavement Marking Striping Strategy for ODOT District 11." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1473433892633007.

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24

Michau, Gabriel. "Link Dependent Origin-Destination Matrix Estimation : Nonsmooth Convex Optimisation with Bluetooth-Inferred Trajectories." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEN017/document.

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L’estimation des matrices origine-destination (OD) est un sujet de recherche important depuis les années 1950. En effet, ces tableaux à deux entrées recensent la demande de transport d'une zone géographique donnée et sont de ce fait un élément clé de l'ingénierie du trafic. Historiquement, les seules données disponibles pour leur estimation par les statistiques étaient les comptages de véhicules par les boucles magnétiques. Ce travail s'inscrit alors dans le contexte de l'installation à Brisbane de plus de 600 détecteurs Bluetooth qui ont la capacité de détecter et d'identifier les appareils é
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25

Vallet, Josselin. "Optimisation dynamique de réseaux IP/MPLS." Thesis, Toulouse, INSA, 2015. http://www.theses.fr/2015ISAT0006/document.

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La forte variabilité des trafics est devenue l'un des problèmes majeurs auxquels doivent faire face les gestionnaires d'infrastructures réseau. Dans ces conditions, l'optimisation du routage des flux en se basant uniquement sur une matrice de trafic moyenne estimée en heure de pointe n'est plus pertinente. Les travaux conduits dans cette thèse visent la conception de méthodes d'optimisation dynamiques du routage, adaptant en temps réel les routes utilisées par les flux aux conditions de trafic dans le réseau.Nous étudions tout d'abord le problème d'optimisation des poids OSPF pour le routage i
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Gondim, Halley Wesley Alexandre Silva. "Construção de visualizações de matrizes origem-destino no cenário do tráfego urbano com foco em avaliação de usabilidade." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/6584.

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Submitted by JÚLIO HEBER SILVA (julioheber@yahoo.com.br) on 2016-12-09T17:56:30Z No. of bitstreams: 3 Tese - Halley Wesley Alexandre Silva Gondim - 2016 (1).pdf: 15892728 bytes, checksum: e9684125eabb07d49d83c85ef1bbf09f (MD5) Tese - Halley Wesley Alexandre Silva Gondim - 2016 (2).pdf: 10523014 bytes, checksum: 52042d7327e7971273d29f0761db1474 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Jaqueline Silva (jtas29@gmail.com) on 2016-12-13T19:13:04Z (GMT) No. of bitstreams: 3 Tese - Halley Wesley Alexandre Silva Gondim - 2016 (1
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Thebit, Mariana Marçal. "Reconstrução de matriz O/D sintética a partir de dados de tráfego disponíveis na web." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/18/18144/tde-10122018-225948/.

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Esta pesquisa apresenta uma proposta de reconstrução de matriz OD a partir de dados de velocidade da corrente de tráfego disponíveis na web. Para tal, foram estabelecidos três objetivos específicos, os quais incluem: obtenção e avaliação dos dados de velocidade de tráfego; construção de um modelo computacional e aplicação desse em uma rede real. A avaliação dos dados foi realizada por meio da comparação dos valores de velocidade média da corrente de tráfego obtidos da web com os valores aferidos por sensores do tipo laço indutivo. Os resultados indicam que, apesar das velocidades extraídas da
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Lakshminarayana, Subhash. "Cross Layer Design in MIMO Multi-cell Systems." Thesis, Supélec, 2012. http://www.theses.fr/2012SUPL0020/document.

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Les prévisions relatives trafic de données au sein des systèmes de communications sans-fil suggèrent une croissance exponentielle, principalement alimentée par l’essor de transferts vidéo mobiles. Etant donné la nature soudaine et fluctuante des demandes de transfert vidéo, il faut dès à présent réfléchir à de nouveaux algorithmes d’allocation de ressources performants. En effet, les algorithmes en couche physique traditionnels, qui réalisent de l’allocation de ressources sous l’hypothèse classique que les transmetteurs sont toujours saturés avec des bits d’information, risquent à l’avenir de
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Bertoncini, Bruno Vieira. "Uma proposta de carregamento incremental de fluxos veiculares para a estimação de matriz O-D sintética." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/18/18144/tde-11042007-143530/.

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Neste trabalho é proposto um método de carregamento incremental dos fluxos veiculares para a estimação de matriz O-D sintética. A principal motivação para o desenvolvimento deste trabalho está na complexidade dos métodos de estimação de matriz sintética pelo método iterativo, que tem conduzido a resultados não satisfatórios. O método de carregamento incremental, ora proposto neste trabalho, pode ser definido como o inverso do método de alocação incremental de viagens aos arcos de uma rede viária. A matriz O-D obtida com este método é o resultado da soma sucessiva das sub-matrizes estimadas atr
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30

Pitton, Anne-Cécile. "Contribution à la ré-identification de véhicules par analyse de signatures magnétiques tri-axiales mesurées par une matrice de capteurs." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT005/document.

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La ré-identification de véhicules permet d’estimer deux paramètres clés en gestion dynamique de trafic : les temps de parcours et les matrices origine-destination. Dans cette thèse, nous avons choisi d'effectuer cette ré-identification par analyse des signatures magnétiques mesurées par des capteurs tri-axiaux placés sur la chaussée. La signature magnétique est générée par l'aimantation du véhicule : elle est alors susceptible de varier en fonction de l'orientation du véhicule par rapport au champ magnétique terrestre (à cause de l'aimantation induite dans le plan horizontal), et en fonction d
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Petracci, Giorgia. "Teorema di Perron-Frobenius e utilizzo nello studio dell'andamento del traffico." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18238/.

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Il Teorema di Perron-Frobenius deve il suo nome ai matematici tedeschi Oskar Perron (1880 - 1975) e Ferdinand Georg Frobenius (1849 - 1917). Fu Perron che per primo si dedicò allo studio di matrici quadrate a entrate positive, e pubblicò nel 1907 il "Teorema di Perron", in cui si dimostra che tali matrici hanno un unico autovalore positivo di modulo massimo, chiamato radice di Perron, e tutti gli altri autovalori diversi da lui hanno modulo minore. L'autovettore associato alla radice di Perron ha componenti tutte positive e ogni altro autovettore a componenti non negative della matrice conside
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Soule, Augustin. "Méthodes et modèles de détection d'anomalies dans les réseaux d'opérateurs." Paris 6, 2006. http://www.theses.fr/2006PA066088.

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Gloaguen, Jean-Rémy. "Estimation du niveau sonore de sources d'intérêt au sein de mixtures sonores urbaines : application au trafic routier." Thesis, Ecole centrale de Nantes, 2018. http://www.theses.fr/2018ECDN0023/document.

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Des réseaux de capteurs acoustiques sont actuellement mis en place dans plusieurs grandes villes afin d’obtenir une description plus fine de l’environnement sonore urbain. Un des défis à relever est celui de réussir,à partir d’enregistrements sonores, à estimer des indicateurs utiles tels que le niveau sonore du trafic routier. Cette tâche n’est en rien triviale en raison de la multitude de sources sonores qui composent cet environnement. Pour cela, la Factorisation en Matrices Non-négatives (NMF) est considérée et appliquée sur deux corpus de mixtures sonores urbaines simulés. L’intérêt de si
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Chen, Yu-Sen. "Utilisation conjointe d'un modèle de génération-distribution et des comptages de circulation pour la reconstitution d'une matrice de trafic routier origine-destination." Phd thesis, Ecole Nationale des Ponts et Chaussées, 1993. http://tel.archives-ouvertes.fr/tel-00529502.

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De l'analyse des méthodes existantes à la recherche d'une méthodologie, du raisonnement au développement, de la réalisation à l'application, nous pouvons conclure qu'une nouvelle méthode (REMODE) a été développée pour reconstituer une matrice origine-destination de trafic interurbain à partir des comptages. Cette méthode, inspirée de la programmation dynamique et des théories des graphes, modélise les comportements des voyageurs d'une part, et tire avantage du calcul mathématique d'autre part. Le but de la fonction objectif est de minimiser la différence entre le comptage et la valeur estimée
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Leurent, Fabien. "Modélisation du trafic, des déplacements sur un réseau et de l'accessibilité aux activités grâce au transport." Habilitation à diriger des recherches, Université Paris Dauphine - Paris IX, 2006. http://tel.archives-ouvertes.fr/tel-00348286.

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Mes travaux de recherche ont pour sujet unificateur : les déplacements et les réseaux de transport ; et ils ont été traités par une approche unique, la modélisation physico-économique à caractère mathématique et algorithmique.<br />Une telle modélisation comporte quatre aspects : un contenu sémantique, à caractère physique ou économique ; une formulation mathématique ; un solveur technique ; un aspect empirique (métrologie, statistique, économétrie).<br />Les disciplines mises en œuvre sont variées : théorie des réseaux, optimisation, informatique algorithmique, probabilités et statistiques, e
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Leggio, Tiziana <1978&gt. "Studio dei flussi di merci, attraverso l'analisi dell'attività dell'Ufficio delle Dogane di Venezia, al fine di un apporto propositivo alla strategia per la repressione dei traffici illeciti di rifiuti." Doctoral thesis, Università Ca' Foscari Venezia, 2013. http://hdl.handle.net/10579/4663.

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I rifiuti rappresentano una sfida a livello ambientale, sociale ed economico: se da un lato evocano immagini negative, spesso diffuse dai mass media in relazione a reati ambientali, dall’altro rappresentano una risorsa preziosa per l’industria nel caso in cui vengano sottoposti a riutilizzo, riciclaggio e recupero di materia ed energia, anche su scala globale a seguito di movimentazioni transfrontaliere. Il presente studio si articola tra il tema normativo, relativo alla gestione e movimentazione dei rifiuti speciali, argomenti tecnico/procedurali, in merito ai controlli ambientali, e valutazi
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Sagnol, Guillaume. "Plans d'expériences optimaux et application à l'estimation des matrices de trafic dans les grands réseaux : programmation conique du second ordre et sous-modularité." Phd thesis, École Nationale Supérieure des Mines de Paris, 2010. http://pastel.archives-ouvertes.fr/pastel-00561664.

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Nous abordons le problème de l'optimisation des mesures dans les grands réseaux Internet par la théorie des plans d'expériences optimaux. Cette approche donne lieu d'étudier des problèmes de grande taille en conception optimale d'expériences, pour lesquels nous développons une méthode de résolution fondée sur l' Optimisation Conique du Second Ordre. Le cœur de notre méthode est un théorème de réduction du rang en optimisation semi-définie. Certains aspects combinatoires sont également étudiés. L'application à l'inférence des matrices de trafic dans les réseaux IP fait l'objet de la seconde par
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Lagarrigue, Frédéric. "Rôle du phosphatidylinositol 5-phosphate dans la survie et la migration cellulaires : implication dans la dynamique des membranes et du cytosquelette." Toulouse 3, 2011. http://www.theses.fr/2011TOU30205.

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Les phosphoinositides jouent un rôle essentiel dans le contrôle spatio-temporel de grandes voies de signalisation impliquées dans la prolifération, la survie, la dynamique du cytosquelette, le trafic ou la migration. Le phosphatidylinositol 5-phosphate (PtdIns5P) est le dernier membre de la famille à avoir été caractérisé et ses fonctions ne sont pas encore totalement connues. Dans ce travail, nous avons étudié le rôle de ce second messager lipidique dans la signalisation en relation avec la survie (régulation de la voie PI3-kinase/Akt) et la migration (activation des GTPases de la famille Rho
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Portillo, Jiménez Canek. "Modelado y evaluación de prestaciones de redes de sensores inalámbricos heterogéneos con ciclo de trabajo síncrono." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/171275.

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[ES] Las redes de sensores inalámbricas (WSN) han experimentado un resurgimiento debido al desarrollo de la Internet de las Cosas (IoT). Una de las características de las aplicaciones de la IoT es la necesidad de hacer uso de dispositivos sensores y actuadores. En aplicaciones como automatización de edificios, de gestión energética, industriales o de salud, los nodos sensores que componen la WSN, transmiten información a un colector central o sink. La información es posteriormente procesada, analizada y utilizada para propósitos específicos. En cada una de estas aplicaciones, los dispositivos
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Vestin, Albin, and Gustav Strandberg. "Evaluation of Target Tracking Using Multiple Sensors and Non-Causal Algorithms." Thesis, Linköpings universitet, Reglerteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-160020.

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Today, the main research field for the automotive industry is to find solutions for active safety. In order to perceive the surrounding environment, tracking nearby traffic objects plays an important role. Validation of the tracking performance is often done in staged traffic scenarios, where additional sensors, mounted on the vehicles, are used to obtain their true positions and velocities. The difficulty of evaluating the tracking performance complicates its development. An alternative approach studied in this thesis, is to record sequences and use non-causal algorithms, such as smoothing, i
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Chengan, Usha. "Traffic matrix estimation of an IP network." 2006. http://hdl.handle.net/1993/20310.

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Chen, Cheng-Hsiang, and 陳政湘. "Trip Matrix Estimation From Traffic Count Data." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/51911344094360418739.

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碩士<br>國立交通大學<br>土木工程研究所<br>82<br>Coventional methods for obtaining origin-destina- tion(OD) trip matrix in urban areas are prone to con- siderable sampling error. For these reasons several researchers try to develop methods for estimating OD matrix from traffic count data. The purpose of this thesis lies in proposing a new estimating approach which needsless data. This reseach is divided into two parts. The first part we derived the feasible trip matrix set. Then, we calibrat
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Leu-Wen, Jeau, and 矯履文. "Estimating O-D Matrix Used Traffic Flows of Freeway." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/66756055791444954399.

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碩士<br>國立成功大學<br>交通管理(科學)學系<br>82<br>The intercity private O-D matrix is very important but difficultly collected data in Taiwan. To save the cost of collecting above data ， it is possible to use traffic flows on existed freeway to estimate the O-D matrix. Most existing mothods must use the on-off ramps flows to estimate the O-D matrix ， but in Taiwan we just have the observed flows on all of the ten toll stations. So this research will develop a serial estimating me
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Hung, Shih-Wei, and 洪詩瑋. "Traffic Matrix Measurements and Multipath Routing in Software Defined Network." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/22176618428347643748.

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碩士<br>國立交通大學<br>網路工程研究所<br>104<br>This thesis presents methods to implementing multi-path routing and measuring network traffic matrix. We used the functions of Group Table defined in OpenFlow specifications; Group tables of type select were used to route traffic with the same destination IP subnet to different ports of a OpenFlow switch. To support multi-path routing, we only need to compare the destination IP addresses. However, to measure the traffic matrix more efficiently, we added an additional flow entry for each pair of a source IP subnet and a destination IP subnet. This flow entry ha
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Chang, Yuan-Bang, and 張原榜. "Improve traffic matrix estimation by node selection and historical data." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/5m2ct3.

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46

Appiah, Justice. "Quantifying uncertainties in synthetic origin-destination trip matrix estimates." 2009. http://proquest.umi.com/pqdweb?did=1820090011&sid=1&Fmt=2&clientId=14215&RQT=309&VName=PQD.

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Thesis (Ph.D.)--University of Nebraska-Lincoln, 2009.<br>Title from title screen (site viewed January 5, 2010). PDF text: xi, 178 p. : ill. ; 2 Mb. UMI publication number: AAT 3360157. Includes bibliographical references. Also available in microfilm and microfiche formats.
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Ng, Eugene. "QoS analysis of traffic between an ISP and future home area network." 2007. http://hdl.handle.net/1993/307.

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Today's home network usually involves connecting multiple PCs and peripheral devices, such as printers and scanners, together in a network. This provides the benefit of allowing the PCs in the network to share Internet access and other resources. However, it is expected in the future, the home area network (HAN) will grow and extend to other home devices such as home entertainment systems (including digital TV, hi-fi stereo, etc.), appliances, webcam, security alarm system, etc. Connecting other home devices to a HAN provides users with many benefits not available in today's home networks.
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Adelani, Titus Olufemi. "An Evaluation of Traffic Matrix Estimation Techniques for Large-Scale IP Networks." 2010. http://hdl.handle.net/1993/3869.

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The information on the volume of traffic flowing between all possible origin and destination pairs in an IP network during a given period of time is generally referred to as traffic matrix (TM). This information, which is very important for various traffic engineering tasks, is very costly and difficult to obtain on large operational IP network, consequently it is often inferred from readily available link load measurements. In this thesis, we evaluated 5 TM estimation techniques, namely Tomogravity (TG), Entropy Maximization (EM), Quadratic Programming (QP), Linear Programming (LP) and Neu
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Shih, Shih-Chin, and 施世欽. "The Study of Origin-Destination Matrix Estimation From Link Traffic Count Data." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/28123803917525773430.

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碩士<br>國立交通大學<br>土木工程研究所<br>83<br>Origin-Destination(O-D) matrix is an important data in ur- ban transportation planning. Conventional method such as home interview surveys for obtaining O-D matrix in urban areas are prone to considerable sampling error and become prohibitively costly. For these reasons several researchers try to develop methods for estimating O-D matrix from link traffic count data . Most previous research works on O-D matrix estimation conce- ntrated on rule of user-equili
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CHEN, XIN-XIONG, and 陳信雄. "Trip matrix estimation from traffic count data based on cost-efficiency principle." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/71193096044802108739.

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