Exploració per tema "MAC"
Ara es mostren els items 7-26 de 39
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Channel access unfairness of wireless LAN access methods
(Institute of Electrical and Electronics Engineers, 2006-06)
Text en actes de congrés
Accés obertIn this paper, we present an evaluation of chosen wireless LAN access methods involving stations with different bit error rates: n - 1 stations in ideal transmission conditions (BER = 0) and 1 station with a given bit error ... -
Comunicación inalámbrica ultrarrápida optimización de persistencia en protocolos MAC para redes inalámbricas en chips
(Universitat Politècnica de Catalunya, 2018-06)
Treball Final de Grau
Accés obertPersistence Optimization for MAC protocols in Wireless Networks on Chip. -
CooPNC: a cooperative multicast protocol exploiting physical layer network coding
(Elsevier, 2014-03)
Article
Accés restringit per política de l'editorialIn this paper we present a multicast protocol for short range networks that exploits the characteristics of physical layer network coding. In our proposed protocol, named CooPNC, we provide a novel cooperative approach ... -
Decodificación de canal asistida por protocolo
(Universitat Politècnica de Catalunya, 2016)
Projecte/Treball Final de Carrera
Accés obertThis document describes how the channel decoder at Physical layer of a communication system can benefit from information brought either by careful examination of the standard, or by already received packets. In all ... -
Desenvolupament d’un sistema de transmissio sense fils basat en DQ
(Universitat Politècnica de Catalunya, 2014-05-29)
Projecte/Treball Final de Carrera
Accés obertDQ is a high performance access protocol for wireless communications networks which reaches collision-free data transmissions by gathering the random access requests in a small time window and completely avoiding the ... -
Design, implementation, and verification of an FPGA-based control system for a permanent-magnet motor drive built upon a three-phase four-level active-clamped inverter
(Universitat Politècnica de Catalunya, 2015-05)
Projecte Final de Màster Oficial
Accés obert[ANGLÈS] The present work summarizes the work and knowledge acquired by the author during its Master’s Thesis in the Research Group in Power Electronics, GREP. The development is based on the Multilevel Active-Clamped (MAC) ... -
Duo-MAC: Energy and time constrained data delivery MAC protocol in wireless sensor networks
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialWe present Duo-MAC, an asynchronous cascading wake-up scheduled MAC protocol for heterogeneous traffic forwarding in low-power wireless networks. Duo-MAC deals with energy-delay minimization problem and copes with transmission ... -
Enhancement proposal for WLAN IEEE 802.11e: desynchronization of its working procedure
(Institute of Electrical and Electronics Engineers, 2005)
Text en actes de congrés
Accés obertUp to the present, several studies have been performed in order to provide prioritization of stations or classes of service for WLAN IEEE 802.11. The IEEE 802.11e draft specification aims to extend the original IEEE 802.11 ... -
Evaluación de IEEE 802.11g en un entorno celular exterior
(2004-11)
Text en actes de congrés
Accés obertLa mayoría de estudios que se encargan de analizar el comportamiento de IEEE 802.11 se encuentran limitados a entornos unicelulares. Sin embargo, la idea de diseñar una red celular basada en IEEE 802.11 resulta muy ... -
Evaluación de protocolos MAC cooperativos para sistemas de transmisión inalámbricos
(Universitat Politècnica de Catalunya, 2010-04-21)
Treball Final de Grau
Accés obert -
Evaluating wireless LAN access methods in presence of transmission errors
(Institute of Electrical and Electronics Engineers, 2006-04)
Text en actes de congrés
Accés obertSeveral modifications of the IEEE 802.11 DCF access method have been proposed recently to improve the performance of wireless LANs. Up to now, such proposals have only been compared under ideal channel conditions. In this ... -
eVTOL aircraft concept - Wing and canard study and design
(Universitat Politècnica de Catalunya, 2023-02-14)
Treball Final de Grau
Accés obert
Realitzat a/amb: ONAerospaceThe evolution of urban air mobility is pushing the boundaries of air transportation as we currently know it: in the forthcoming years, the first iterations of personal air vehicles will emerge, making air travel cheaper ... -
Fairness enhancement in a self-configuring cluster-based wireless ad hoc network
(Institute of Electrical and Electronics Engineers (IEEE), 2005)
Comunicació de congrés
Accés restringit per política de l'editorialIn this paper we analyze an unfairness problem arisen when implementing the self-configuring clusterbased DQCA AD HOC MAC protocol in a near-static topology. When there is a low relative mobility among terminals and ... -
HEH-BMAC: hybrid polling MAC protocol for WBANs operated by human energy harvesting
(2015-02-01)
Article
Accés obertThis paper introduces human energy harvesting medium access control (MAC) protocol (HEH-BMAC), a hybrid polling MAC suitable for wireless body area networks powered by human energy harvesting. The proposed protocol combines ... -
Implementación de un protocolo MAC multisalto de bajo consumo para redes de sensores inalámbricos
(Universitat Politècnica de Catalunya, 2011-02-24)
Projecte/Treball Final de Carrera
Accés obertCatalà: Les xarxes de sensors sense fil comencen a convertir-se en quelcom habitual dins les noves tendències d'investigació, degut al gran nombre d'aplicacions que tenen. Aquests dispositius funcionen generalment amb ... -
Implementación del protocolo DPCF en motas inalámbricas y estudio de su eficiencia energética
(Universitat Politècnica de Catalunya, 2012-05-08)
Treball Final de Grau
Accés obertLa mayoría de dispositivos inalámbricos que operan con el estándar IEEE 802.15.4 implementan el método CSMA/CA no ranurado como protocolo de acceso al medio (MAC). Este protocolo ofrece un buen rendimiento para bajas cargas ... -
Integración de protocolos de acceso avanzados en redes WLAN IEEE 802.11
(Universitat Politècnica de Catalunya, 2008-07-21)
Projecte/Treball Final de Carrera
Accés obertLas redes móviles ad hoc (MANETs) son redes inalámbricas distribuidas sin infraestructura formadas por un conjunto de dispositivos inalámbricos móviles. La ausencia de una entidad centralizada encargada de la gestión de ... -
Interference cancellation and network coding for underwater communication systems
(Universitat Politècnica de Catalunya, 2010-06-21)
Projecte Final de Màster Oficial
Accés obert -
LAMAN: Load adaptable MAC for ad-hoc networks
(2005)
Article
Accés restringit per política de l'editorialIn mobile ad hoc radio networks, mechanisms on how to access the radio channel are extremely important in order to improve network efficiency. In this paper, the load adaptable medium access control for ad hoc networks ... -
Medium Access Protocol for AmBC
(Universitat Politècnica de Catalunya, 2023-07-12)
Projecte Final de Màster Oficial
Accés obertThis thesis will study different medium access techniques for Ambient Backscatter Communications (AmBC), which takes profit of the ambient RF signals in the environment to enable wireless devices communicate and harvest ...