The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
LANs sem fio têm sido usadas para realizar usuários totalmente distribuídos em um ambiente multimídia que tem a capacidade de fornecer tráfego em rajadas (como voz ou vídeo) e tráfego de dados em tempo real. Neste artigo, apresentamos um novo modelo de sistema realista e detalhado e uma nova análise eficaz para o desempenho de LANs sem fio que suportam comunicação multimídia com protocolo de acesso múltiplo não persistente com detecção de portadora com prevenção de colisão (CSMA/CA). Neste modelo CSMA/CA, um usuário com um pacote pronto para transmitir envia inicialmente alguns sinais de pulso com intervalos aleatórios dentro de um período para evitar colisão antes de transmitir o pacote para verificar um canal limpo. O modelo do sistema consiste em um número finito de usuários para compartilhar eficientemente um canal comum. Cada usuário pode ser uma fonte de tráfego de voz e de dados. O eixo do tempo é dividido em intervalos e um quadro possui um grande número de slots e inclui duas partes: o período para evitar colisões e o período de transmissão de pacotes. Um processo de Markov de tempo discreto é usado para modelar a operação do sistema. O número de slots em um quadro pode ser arbitrário, dependendo da duração escolhida do período para evitar colisões e do período de transmissão de pacotes. Os resultados numéricos são mostrados em termos de utilização do canal e atraso médio dos pacotes para diferentes taxas de geração de pacotes. Eles indicam que o desempenho da rede pode ser melhorado pela escolha adequada de relações entre o período de prevenção de colisão e o período de transmissão, e a probabilidade de transmissão de pulso.
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Wuyi YUE, Yutaka MATSUMOTO, "A New Effective Analysis for Wireless CSMA/CA LANs Supporting Real-Time Voice and Data Services" in IEICE TRANSACTIONS on Fundamentals,
vol. E84-A, no. 7, pp. 1660-1669, July 2001, doi: .
Abstract: Wireless LANs have been used for realizing fully-distributed users in a multimedia environment that has the ability to provide real-time bursty traffic (such as voice or video) and data traffic. In this paper, we present a new realistic and detailed system model and a new effective analysis for the performance of wireless LANs which support multimedia communication with non-persistent carrier sense multiple access with collision avoidance (CSMA/CA) protocol. In this CSMA/CA model, a user with a packet ready to transmit initially sends some pulse signals with random intervals within a collision avoidance period before transmitting the packet to verify a clear channel. The system model consists of a finite number of users to efficiently share a common channel. Each user can be a source of both voice traffic and data traffic. The time axis is slotted, and a frame has a large number of slots and includes two parts: the collision avoidance period and the packet transmission period. A discrete-time Markov process is used to model the system operation. The number of slots in a frame can be arbitrary, dependent on the chosen lengths of the collision avoidance period and packet transmission period. Numerical results are shown in terms of channel utilization and average packet delay for different packet generation rates. They indicate that the network performance can be improved by adequate choice of ratios between the collision avoidance period and transmission period, and the pulse transmission probability.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e84-a_7_1660/_p
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@ARTICLE{e84-a_7_1660,
author={Wuyi YUE, Yutaka MATSUMOTO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A New Effective Analysis for Wireless CSMA/CA LANs Supporting Real-Time Voice and Data Services},
year={2001},
volume={E84-A},
number={7},
pages={1660-1669},
abstract={Wireless LANs have been used for realizing fully-distributed users in a multimedia environment that has the ability to provide real-time bursty traffic (such as voice or video) and data traffic. In this paper, we present a new realistic and detailed system model and a new effective analysis for the performance of wireless LANs which support multimedia communication with non-persistent carrier sense multiple access with collision avoidance (CSMA/CA) protocol. In this CSMA/CA model, a user with a packet ready to transmit initially sends some pulse signals with random intervals within a collision avoidance period before transmitting the packet to verify a clear channel. The system model consists of a finite number of users to efficiently share a common channel. Each user can be a source of both voice traffic and data traffic. The time axis is slotted, and a frame has a large number of slots and includes two parts: the collision avoidance period and the packet transmission period. A discrete-time Markov process is used to model the system operation. The number of slots in a frame can be arbitrary, dependent on the chosen lengths of the collision avoidance period and packet transmission period. Numerical results are shown in terms of channel utilization and average packet delay for different packet generation rates. They indicate that the network performance can be improved by adequate choice of ratios between the collision avoidance period and transmission period, and the pulse transmission probability.},
keywords={},
doi={},
ISSN={},
month={July},}
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TY - JOUR
TI - A New Effective Analysis for Wireless CSMA/CA LANs Supporting Real-Time Voice and Data Services
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1660
EP - 1669
AU - Wuyi YUE
AU - Yutaka MATSUMOTO
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E84-A
IS - 7
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - July 2001
AB - Wireless LANs have been used for realizing fully-distributed users in a multimedia environment that has the ability to provide real-time bursty traffic (such as voice or video) and data traffic. In this paper, we present a new realistic and detailed system model and a new effective analysis for the performance of wireless LANs which support multimedia communication with non-persistent carrier sense multiple access with collision avoidance (CSMA/CA) protocol. In this CSMA/CA model, a user with a packet ready to transmit initially sends some pulse signals with random intervals within a collision avoidance period before transmitting the packet to verify a clear channel. The system model consists of a finite number of users to efficiently share a common channel. Each user can be a source of both voice traffic and data traffic. The time axis is slotted, and a frame has a large number of slots and includes two parts: the collision avoidance period and the packet transmission period. A discrete-time Markov process is used to model the system operation. The number of slots in a frame can be arbitrary, dependent on the chosen lengths of the collision avoidance period and packet transmission period. Numerical results are shown in terms of channel utilization and average packet delay for different packet generation rates. They indicate that the network performance can be improved by adequate choice of ratios between the collision avoidance period and transmission period, and the pulse transmission probability.
ER -