Traffic Prediction
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. Multi-Step-Ahead Spectrum Prediction for Cognitive Radio in Fading Scenarios
Abstract This paper analyzes multi-step-ahead spectrum prediction for Cognitive Radio (CR) systems using several future states. A slot-based scenario is used, and prediction is based on the Support Vector Machine (SVM) algorithm. The aim is to determine whether multi-step-ahead spectrum prediction has gains in terms of reduced channel-switching and increased
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2020-12
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2. A Prediction Model for Night Recovery of Embarked Aircrafts Based on System Dynamics
ABSTRACT: In order to make a sensible prediction on the air traffic flow management with conditions of wave-off and bolter, a system dynamic model for the night recovery operations of embarked aircrafts is built to ensure the adaption of air traffic flow with the capacity of air control at each phase of the recovery operations. The model aims at the characte
J. Aerosp. Technol. Manag.. Publicado em: 2017-12
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3. Fatigue analysis and life prediction of composite highway bridge decks under traffic loading
Steel and composite (steel-concrete) highway bridges are currently subjected to dynamic actions of variable magnitude due to convoy of vehicles crossing on the deck pavement. These dynamic actions can generate the nucleation of fractures or even their propagation on the bridge deck structure. Proper consideration of all of the aspects mentioned pointed our t
Lat. Am. j. solids struct.. Publicado em: 2013-05
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4. Avaliação de impactos da cadeia produtiva em aeroportos : o caso de Congonhas
Over time, the business grossed airport beyond its traditional functions, such as transporting passengers and cargo, commercial functions, with the inclusion of shopping malls, cinemas, food courts, among others. Thus, several developments aids such as logistics companies, car rental, travel agencies and even residential neighborhoods, occupied in a disorder
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/07/2012
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5. Contribuição para calibração de curva de evolução de afundamentos em trilha de roda de revestimentos asfálticos com utilização de resultados obtidos de simulador de tráfego em escala real. / A contribution to the calibration of performance curves for the prediction of permanent deformation in asphalt pavements using the results obtained from a large scale mobile traffic simulator
Permanent deformation, or rutting, is a critical type of pavement distress given that it is directly associated with transportation costs, due to a reduction of the ride quality, and user safety, due to poor driving conditions or water build-up during rainy periods that affect the tire-pavement interaction. In the case of pavements of highways belonging to c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/03/2012
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6. Métodos de redução do arrasto e seus impactos sobre a estabilidade veicular / Methods of drag reduction and the impacts on the vehicle aerodynamics stability
The growing environmental concern and the necessity to create more efficient products have motivated researchers to conduct studies about the aerodynamic vehicle. These two aspects are the main reasons which are promoting a great demand for knowledge in this theme. This science may be considered relatively new and still lacks more databases. Understand how a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/06/2011
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7. Modelagem, previsão de séries de tráfego e controle estatístico de indicadores de qualidade em redes celulares
he cellular networks evolution lead to a growth in the number of users that resulted in the increment of network elements, which must have enough capacity and efficiently monitored key performance indicators. This research proposes the application of Autoregressive Integrated Moving Average models in the identification and prediction of traffic time series i
Publicado em: 2010
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8. Avaliação de desempenho de recapeamentos asfálticos com camada intemediária de geotêxtil submetidos à solicitação por simulador de tráfego / Performance evaluation of asphalt overlays containing intermediate layer of geotextile submitted to traffic simulator
Esta dissertação apresenta os resultados e análises do monitoramento de um recapeamento asfáltico executado com camada intermediária de geotêxtil. A pista experimental vem sendo solicitada desde 1999, em uma pesquisa que se encontra na sua terceira fase, atingindo 1.103.885 ciclos de carga de 100 kN aplicados. Nessa última fase de estudo o tráfego fo
Publicado em: 2009
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9. Estratégias de gerenciamento de banda IP/MPLS para o transporte eficiente de serviços integrados
To use the network resources in the optimal efficiency one possibility is apply resource management policies that can be flexible and feasible as much as the time period can be. The converged networks are expected to deliver audio and video transmissions with quality as good as that of a circuit switching network. In order to make it possible, the network mu
Publicado em: 2007
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10. Esquema de controle adaptativo de fluxos de trafego baseado em modelagem fuzzy preditiva / Predictive Fuzzy modeling for adaptive control of network traffic flows
O presente trabalho propõe um esquema de controle adaptativo de ?uxos baseado no modelo fuzzy TSK. Neste esquema de controle, o modelo fuzzy TSK é utilizado para prever adaptativamente o tamanho da ?la no buffer em um enlace. Com o objetivo de ajustar dinamicamente os parâmetros do modelo fuzzy TSK, propomos um algoritmo de treinamento adaptativo. Na prim
Publicado em: 2007
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11. Modelos para previsão de acidentes de trânsito em vias arteriais urbanas / Traffic accidents prediction models to urban arterials streets
Esta tese apresenta modelos de previsão de acidentes de trânsito desenvolvidos a partir de dados de segmentos de vias arteriais urbanas da cidade de Porto Alegre, capital do estado do Rio Grande do Sul, Brasil. Os modelos de previsão foram desenvolvidos para dois tipos de acidentes: colisão e atropelamento. O objetivo do trabalho foi gerar modelos de pre
Publicado em: 2007
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12. A stream scheduling scheme based on local regularity of internet traffic / Esquema de escalonamento baseado na regularidade local de fluxos de dados internet
Today network traffic is composed of many services with different statistical characteristics and quality of service requirements. This integration needs efficient traffic congestion control and management schemes. Dynamic and preventive schemes usually anticipate traffic conditions by means of a prediction process. Nevertheless, at fine-grained time scales,
Publicado em: 2006