Standard Ieee 802 16
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Algoritmo de escalonamento DRR com quantum adaptativo para o tráfego downlink de redes IEEE 802.16j / DRR adaptive quantum scheduling algorithm for downlink traffic of IEEE 802.16j networks
IEEE 802.16j networks provide, through the Relay Station (RS), improvements with regard to previous specifications of WiMAX in terms of increased coverage area, reduction of deployment costs due to low cost of RS compared to a Base Station (BS) and system average throughput increase. Its main purpose is to meet demands for wireless broadband access at lower
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/10/2012
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2. Um estudo de escalonamento UPLINK considerando a camada física OFDM do padrão IEEE 802.16 / A study of uplink scheduling considering the OFDM physical layer of IEEE 802.16 standard
O padrão IEEE 802.16 define as especificações para a camada de controle de acesso ao meio (MAC - Medium Access Control ) e os parâmetros para a camada física (PHY - Physical Layer), os quais possibilitam estruturar a arquitetura para o provimento QoS (Quality of Service) às redes de acesso em banda larga sem fio [1, 2]. No entanto, deixa em aberto a fo
Publicado em: 2011
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3. Proposed Threshold-Based Connection Admission Control (CAC) Algorithm for IEEE 802.16 Networks / Proposta de algoritmo de controle de admissão de conexões baseado em Threshold para as Redes IEEE 802.16
IEEE 802.16 standard, also called WiMAX (Worldwide Interoperability for Microwave Access), is one of the most promising technologies for BWA (Broadband Wireless Access) networks. The IEEE 802.16 standard provides specification of MAC and physical layer. The standard adds to the BWA networks some advantages over other technologies, such as wide area of covera
Publicado em: 2009
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4. Arquitetura para controle de políticas de tarifação em redes WiMAX mesh
In the last years, much effort has been applied to study Wireless Mesh Networks (WMNs). As part of this effort, the IEEE 802.16 Standard for Local and Metropolitan Area Networks specifies a mesh mode operation for WiMAX networks, opening possibilities for real mesh networks deployment. Several technical aspects of the physical and medium access layers of the
Publicado em: 2009
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5. Análise e simulação do sistema de comunicações WiMAX(IEEE 802.16 - 2004) com ADS (Advanced Design System). / Analysis and simulation of communication system WiMAX (IEEE 802.16 2004) with ADS (Advanced Design System).
Este trabalho apresenta uma visão geral do modo de transmissão OFDM do padrão IEEE 802.16. O controle de acesso ao meio (MAC) e da camada física (PHY) são descritos em detalhes. Especialmente a estrutura do frame na camada (PHY). Além disso, as diferentes configurações da camada PHY com diferentes níveis de robustez são analisadas. Em seguida a sim
Publicado em: 2008
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6. Um estudo comparativo do desempenho das disciplinas de escalona-mento WRR e WFQ no suporte à QoS em ambientes de redes de acesso IEEE 802.16
The incipient technology of wireless access networks of the IEEE 802.16 Standard aggregates to the BWA systems many advantages over concur technologies, such as radio signal wide coverage, even in difficult access regions or needy of conventional infrastructure of network, as the case of some urban and rural areas of Brazil. Moreover, enables access to the I
Publicado em: 2008
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7. MOBILE BROADBAND IEEE 802.16E-2005 SYSTEMS PLANNING FOR FREQUENCIES BETWEEN 2 AND 11 GHZ / PLANEJAMENTO DE SISTEMAS MÓVEIS EM BANDA LARGA IEEE 802.16E-2005 EM FREQÜÊNCIAS ENTRE 2 E 11 GHZ
The design of mobile broadband systems requires detailed planning due to necessity of maximizing the use of available bandwidth, network capacity, achieve minimum availability levels and minimize network implementation and operational costs. This work presents a design methodology to be employed in mobile broadband systems based on the IEEE Std 802.16-2005 (
Publicado em: 2008