Exploració per tema "Xarxes d'àrea local sense fils (Xarxes d'ordinadors)"
Ara es mostren els items 1-20 de 75
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A case of acquisition, transmission and use of information to control a manufacturing process
(Universitat Politècnica de Catalunya, 2009-10-08)
Projecte Final de Màster Oficial
Accés obert -
A comparative analysis of the user behavior in academic WiFi networks
(Association for Computing Machinery (ACM), 2011)
Comunicació de congrés
Accés restringit per política de l'editorial -
A cross-layer energy-saving mechanism for an enhancement of 802.11 WLAN systems
(Institute of Electrical and Electronics Engineers (IEEE), 2004)
Comunicació de congrés
Accés restringit per política de l'editorialMost multiple access collision avoidance-based (MAC) protocols for WLAN systems have been using fixed transmission power and have not considered energy-saving techniques targeted on channel estimation models. In order to ... -
A Fairness-Oriented Interference-Balancing Scheme for Cooperative Frequency Hopping Ad Hoc Networks
(Universitat Politècnica de Catalunya, 2011-11-21)
Projecte/Treball Final de Carrera
Accés obert
Realitzat a/amb: Karlsruher Institut für TechnologieEnglish: It may quite frequently occur in an ad hoc network that the density of users in a given area becomes relatively high during some period of time. At the same time, network resource scheduling is not done regarding ... -
A new medium access protocol based on distributed queues for a CDMA environment
(Institute of Electrical and Electronics Engineers (IEEE), 1999)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper presents and analyses a new stable near-optimum random access protocol. The proposed access scheme is adapted for being used in a CDMA environment. It is based on distributed queues and a collision resolution ... -
A novel MAC protocol for dynamic ad hoc wireless networks with dynamic self-configurable master-slave architecture
(Suvisoft IEEE catalog number 04TH8754C, 2004)
Comunicació de congrés
Accés restringit per política de l'editorialThis paper proposes and analyses a novel MAC protocol for wireless ad hoc networks that makes use of distributed queues to achieve an efficient use of the radio channel. The protocol includes a dynamic self-configurable ... -
A novel near-optimum medium acces control protocol for a distributed cooperative ARQ scheme in wireless networks
(Institute of Electrical and Electronics Engineers (IEEE), 2008-09-30)
Comunicació de congrés
Accés restringit per política de l'editorialThe distributed queuing MAC protocol for cooperative networks (DQCOOP) is presented in this paper as an innovative MAC protocol designed to coordinate the relay retransmissions in a cooperative automatic retransmission ... -
A real-world implementation and parametrization of mobile ad-hoc networks
(Universitat Politècnica de Catalunya, 2008-10-16)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autorThe concept of ad-hoc networking merges from the need of new applications for wireless computing technologies; which require temporary, dynamic and self-organized network topologies. Ad-hoc networks are a collection of ... -
A reputation-based scheme for announcement messages in vehicular networks
(Universitat Politècnica de Catalunya, 2011-09-08)
Projecte Final de Màster Oficial
Accés obertEnglish: Vehicular Ad-Hoc Networks (VANETs) are shaping up as the next step to provide information and safety services to vehicles. These networks are characterized for being variable in terms of connectivity and delay due ... -
A Simulation Study on the Performance of Vehicular Communications Using a Realistic Channel Model
(Universitat Politècnica de Catalunya, 2016-04-15)
Projecte/Treball Final de Carrera
Accés obertIn this work we implement and study, through simulations, a state-of-the-art radio propagation model designed for vehicle-to-vehicle communications in Vehicular Ad Hoc Networks (VANET). -
Agricultural monitoring by means of wireless sensor network for large fields within the Internet of Things (IoT) paradigm
(Universitat Politècnica de Catalunya, 2022-09-05)
Projecte Final de Màster Oficial
Accés restringit per acord de confidencialitatNowadays, the need to use smart devices with connectivity to information clouds is more common, both for control and for receiving information through sensors, for which there are a variety of technical solutions depending ... -
Análisis de software de simulación de redes y estudio de configuración para prácticas docentes
(Universitat Politècnica de Catalunya, 2015-09-29)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autorIn this document you will be able to find theoretical and practicing information about how to use GNS3, a network simulator software. This document also contains some lines about the previous concepts that users must know ... -
Análisis de un mecanismo de ahorro de energía mediante lógica fuzzy para la mejora de sistemas WLAN 802.11
(Univ. Jaen, 2004)
Comunicació de congrés
Accés restringit per política de l'editorialLa mayoría de los protocolos de acceso al medio, los llamados protocolos MAC (Medium Access Control), para sistemas WLAN (Wireless Local Area Network), fijan una potencia de transmisión constante sin considerar técnicas ... -
Application of the DQCA protocol to the optimization of wireless communications systems in cellular environments
(Universitat Politècnica de Catalunya, 2007-04-16)
Projecte/Treball Final de Carrera
Accés obertThis final career thesis (Master thesis) is a contribution on the enhancement of wireless communications, specifically WLAN multi-cell systems based on the IEEE 802.11 standard. The objectives were to propose and study ... -
Authentication system deployment throughout protected access (UTM) for the Wireless Network in a hotel chain
(Universitat Politècnica de Catalunya, 2011-10-08)
Treball Final de Grau
Accés obertA Hotel chain distributed over Europe wishes to provide wireless access to Internet for the hosted customers and offer an integral security through a Unified Threat Management ( UTM ) The project will consist; in one hand, ... -
Avaluació experimental d'un protocol d'encaminament multicamí basat en AODV
(Universitat Politècnica de Catalunya, 2006-07-11)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autorActualment les xarxes inalàmbriques, i en especial les xarxes ad-hoc (MANET), són un punt important d’investigació per part dels científics degut al gran ventall de camps a on poden ser aplicades. Encara que les MANETs suposin ... -
Banco de pruebas para redes ad-hoc
(Universitat Politècnica de Catalunya, 2011-12-20)
Treball Final de Grau
Accés obertLas redes ad-hoc son sistemas autónomos de redes temporales dinámicas formadas por un conjunto de nodos móviles inalámbricos, sin la intervención de puntos de acceso centralizados o de infraestructura de ningún tipo. En ... -
Business scenarios, technical challenges and system requirements - D2.1
(2010-11)
Report de recerca
Accés obert -
Certificate status information distribution and validation in vehicular networks
(Universitat Politècnica de Catalunya, 2013-09-04)
Tesi
Accés obertVehicular ad hoc networks (VANETs) are emerging as an functional technology for providing a wide range of applications to vehicles and passengers. Ensuring secure functioning is one of the prerequisites for deploying ... -
Contribución al diseño de protocolos de encaminamiento en redes móviles ad-hoc basados en reputación
(Universitat Politècnica de Catalunya, 2019-06-13)
Tesi
Accés obertThe mobile ad-hoc networks are part of the next generation access networks (Next Generation Networking o NGN), "all-IP" networks facing the great scientific and technical challenge that is the ubiquitous computing The ...