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".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Em sistemas de comunicação multimídia sem fio baseados em software, cada terminal móvel será capaz de selecionar o formato de transmissão mais adequado de acordo com sua qualidade de serviço (QoS) e condição do canal. Neste artigo, focamos a atenção em "seletividade do esquema de acesso"em tal sistema baseado em software e discutir a melhoria do desempenho do tráfego devido à seleção do esquema de acesso adaptativo. Assumindo um sistema TDMA/CDMA baseado em software onde acesso múltiplo por divisão de tempo (TDMA) e acesso múltiplo por divisão de código de sequência direta (DS-CDMA ) são selecionáveis de forma flexível, avaliamos o desempenho do tráfego em termos de atraso médio com um modelo típico de serviço multimídia a ser suportado em futuros sistemas de comunicações sem fio. No sistema TDMA/CDMA, como determinar um esquema de acesso apropriado para um usuário é uma questão. questão chave. Portanto, discutimos o algoritmo de seleção para suportar eficientemente serviços multimídia heterogêneos. Nossos resultados de simulação computacional mostram que o sistema baseado em software com um algoritmo de seleção de esquema de acesso simples pode melhorar significativamente o desempenho do tráfego em comparação com sistemas convencionais baseados em hardware.
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Hiroyuki YOMO, Shinsuke HARA, "Traffic Performance of a Software-Based TDMA/CDMA System Accommodating Heterogeneous Multimedia Services" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 3, pp. 502-510, March 2001, doi: .
Abstract: In software-based wireless multimedia communications systems, each mobile terminal will be able to select its best-suited transmission format according to its quality of service (QoS) and channel condition. In this paper, we focus attention on "access scheme selectability" in such a software-based system, and discuss the traffic performance improvement due to adaptive access scheme selection. Assuming a software-based TDMA/CDMA system where time division multiple access (TDMA) and direct sequence code division multiple access (DS-CDMA) schemes are flexibly selectable, we evaluate the traffic performance in terms of average delay with a typical multimedia service model to be supported in future wireless communications systems. In the TDMA/CDMA system, how to determine an appropriate access scheme for a user is a key issue. Therefore, we discuss the selection algorithm for efficiently supporting heterogeneous multimedia services. Our computer simulation results show that the software-based system with a simple access scheme selection algorithm can significantly improve the traffic performance as compared with conventional hardware-based systems.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_3_502/_p
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@ARTICLE{e84-b_3_502,
author={Hiroyuki YOMO, Shinsuke HARA, },
journal={IEICE TRANSACTIONS on Communications},
title={Traffic Performance of a Software-Based TDMA/CDMA System Accommodating Heterogeneous Multimedia Services},
year={2001},
volume={E84-B},
number={3},
pages={502-510},
abstract={In software-based wireless multimedia communications systems, each mobile terminal will be able to select its best-suited transmission format according to its quality of service (QoS) and channel condition. In this paper, we focus attention on "access scheme selectability" in such a software-based system, and discuss the traffic performance improvement due to adaptive access scheme selection. Assuming a software-based TDMA/CDMA system where time division multiple access (TDMA) and direct sequence code division multiple access (DS-CDMA) schemes are flexibly selectable, we evaluate the traffic performance in terms of average delay with a typical multimedia service model to be supported in future wireless communications systems. In the TDMA/CDMA system, how to determine an appropriate access scheme for a user is a key issue. Therefore, we discuss the selection algorithm for efficiently supporting heterogeneous multimedia services. Our computer simulation results show that the software-based system with a simple access scheme selection algorithm can significantly improve the traffic performance as compared with conventional hardware-based systems.},
keywords={},
doi={},
ISSN={},
month={March},}
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TY - JOUR
TI - Traffic Performance of a Software-Based TDMA/CDMA System Accommodating Heterogeneous Multimedia Services
T2 - IEICE TRANSACTIONS on Communications
SP - 502
EP - 510
AU - Hiroyuki YOMO
AU - Shinsuke HARA
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2001
AB - In software-based wireless multimedia communications systems, each mobile terminal will be able to select its best-suited transmission format according to its quality of service (QoS) and channel condition. In this paper, we focus attention on "access scheme selectability" in such a software-based system, and discuss the traffic performance improvement due to adaptive access scheme selection. Assuming a software-based TDMA/CDMA system where time division multiple access (TDMA) and direct sequence code division multiple access (DS-CDMA) schemes are flexibly selectable, we evaluate the traffic performance in terms of average delay with a typical multimedia service model to be supported in future wireless communications systems. In the TDMA/CDMA system, how to determine an appropriate access scheme for a user is a key issue. Therefore, we discuss the selection algorithm for efficiently supporting heterogeneous multimedia services. Our computer simulation results show that the software-based system with a simple access scheme selection algorithm can significantly improve the traffic performance as compared with conventional hardware-based systems.
ER -