Exploració per tema "WLAN"
Ara es mostren els items 1-20 de 73
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A compact dual-band planar monopole antenna using fractal rings and A Y-shaped feeding transmission line
(De Gruytr, 2018-01-01)
Article
Accés obertThis paper presents a novel design approach of a compact dual-band monopole antenna with an overall size of 18.9x13x1.6mm3. The proposed antenna is composed of a fractal ring shaped patch fed by a Y-shaped transmission ... -
A near-optimum cross-layered distributed queuing protocol for wireless LAN: medium access control protocols for wireless LANs
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2008-02)
Article
Accés obertDistributed Queuing Collision Avoidance (DQCA) is a distributed MAC protocol for WLAN systems that offers near optimum performance. The protocol implements a reservation scheme that ensures collision-free data transmissions ... -
A novel cheater and jammer detection scheme for IEEE 802.11-based wireless LANs
(2015-07-05)
Article
Accés obertThe proliferation of IEEE 802.11 networks has made them an easy and attractive target for malicious devices/adversaries which intend to misuse the available network. In this paper, we introduce a novel malicious entity ... -
A ranging method with IEEE 802.11 data frames for indoor localization
(IEEE, 2007-03-15)
Comunicació de congrés
Accés obertIEEE 802.11 networks constitute a suitable infrastructure for accurate indoor positioning. However, existing approaches based on fingerprinting present drawbacks that make them not suitable for most of applications. This ... -
A transmit power control proposal for IEEE 802.11 cellular networks
(Institute of Electrical and Electronics Engineers, 2006-05)
Text en actes de congrés
Accés obertActually, the idea of designing an outdoor cellular network based on WLAN IEEE 802.11 results very attractive, due to the several advantages that this technology presents. It offers the equipment at a lower cost, operates ... -
Achievable bandwidth estimation for stations in multi-rate IEEE 802.11 WLAN cells
(2007-04-16)
Text en actes de congrés
Accés obertThis paper analyzes the effect of multi-rate transmissions in a CSMA wireless LAN environment. Observations in a real testbed showed that bandwidth resources (in Bytes/s) are shared fairly among all stations even though ... -
ADAPT: An adaptive directional antenna protocol for medium access control in terahertz networks
(Universitat Politècnica de Catalunya, 2020-06)
Treball Final de Grau
Accés obert
Realitzat a/amb: Northeastern UniversityTerahertz (THz) band communications are emerging as a key technology for the next generation of wireless communications, with the potential to realize ultra-broadband Terabit-per-second (Tbps) links. However, the unique ... -
Analysis of techniques for traffic optimization over satellite backhauling links
(Universitat Politècnica de Catalunya, 2013-10-21)
Projecte/Treball Final de Carrera
Accés obert[ANGLÈS] In certain situations the operation of mobile operator infrastructure can be affected by natural disasters such as hurricanes, fires or earthquakes. This fact hinders optimum coordination of rescue actions and ... -
Anàlisi de l'IEEE 802.11ax (Wi-Fi 6 i Wi-Fi 6E)
(Universitat Politècnica de Catalunya, 2023-10-30)
Treball Final de Grau
Accés restringit per acord de confidencialitatThis final degree thesis is an analysis of the IEEE 802.11ax standard and the two subsequent certifications, Wi-Fi 6 and Wi-Fi 6E, with the aim of obtaining information to understand these new IEEE 802.11 standards. We ... -
Análisis de técnicas de acceso al medio avanzadas basadas en colas distribuidas y mecanismos Cross-Layer para sistemas de comunicaciones inalámbricas
(Universitat Politècnica de Catalunya, 2007-12-19)
Projecte/Treball Final de Carrera
Accés obertEl uso de las redes inalámbricas 802.11 está en continua expansión en la actualidad. Este hecho provoca que cada vez se requiera un mayor control para garantizar una cierta calidad de servicio (QoS) en diferentes ... -
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, ... -
Available Admission Capacity Estimations in IEEE 802.11 Access Points
(2008-04-01)
Report de recerca
Accés obertThis technical report is intended to provide extended information about the Available Admission Capacity estimation mechanism for IEEE 802.11 cells previously presented. The original formulation has been revised in this ... -
Avaluació de un mecanismo de agrupación de usuarios en redes Wi-Fi para IoT utilizando inteligencia artificial
(Universitat Politècnica de Catalunya, 2021-09-14)
Treball Final de Grau
Accés restringit per acord de confidencialitat -
Bezdrátové síte
(European Virtual Learning Platform for Electrical and Information Engineering, 2016-11-08)
Llibre
Accés obertTento modul poskytuje aktuální prehled bezdrátových sítí s primárním zamerením na bezdrátové síte typu LAN. Popisuje a vysvetluje základy ruzných typu bezdrátových technologií užívaných u moderních komunikacních systému ... -
Bezdrôtové siete
(European Virtual Learning Platform for Electrical and Information Engineering, 2016-06-11)
Llibre
Accés obertTento modul predstavuje všeobecný úvod do problematiky bezdrôtových sietí a podrobnejšie lokálnych prístupových sietí LAN. Sú v nom opísané a vysvetlené rôzne existujúce bezdrôtové technológie, ich základné vlastnosti, ... -
Channel assignment algorithms for OSA-Enabled WLANs exploiting prioritization and spectrum heterogeneity
(2012-04)
Article
Accés restringit per política de l'editorialAllowing WLANs to exploit opportunistic spectrum access (OSA) is a promising approach to alleviate spectrum congestion problems in overcrowded unlicensed ISM bands, especially in highly dense WLAN deployments. In this ... -
Characteristics and evaluation of IEEE 802.11n standard
(Universitat Politècnica de Catalunya, 2013-07-22)
Treball Final de Grau
Accés obertEl objetivo de este trabajo final de carrera es caracterizar y evaluar las diferentes funcionalidades y mejoras que aporta el nuevo estándar IEEE 802.11n respecto a sus antecesores. Para ello se hace un estudio teórico ... -
Characterization of reconfigurable antennas in real Wifi environments
(Universitat Politècnica de Catalunya, 2015-02-03)
Treball Final de Grau
Accés obert[ANGLÈS] The purpose of this project is to characterize two reconfigurable microstrip antennas at 5 GHz against the common Wifi monopole, by measuring them in real Wifi environments. From the measurements, conclusions on ... -
Characterizing WLAN channel occupancy for cognitive networking
(Universitat Politècnica de Catalunya, 2012-07-30)
Projecte Final de Màster Oficial
Accés obertThe deployment of heterogeneous wireless networks in the same spectrum space introduces the need for dynamic spectrum access so as to increase the utilization of the available wireless resources. Dynamic spectrum access ... -
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.