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
Neste artigo, propomos um sistema de combinação de sistema de acesso sem fio de banda larga (BWA) de acesso múltiplo por divisão de tempo (TDMA) ponto a multiponto (P-MP) e rede de área local sem fio interna (WLAN). Para realizar uma comunicação sem fio de alta velocidade, é necessária uma ampla largura de banda tanto para linhas de acesso quanto para redes locais. O sistema proposto compartilha a frequência entre BWA e WLAN para conseguir um uso eficiente dos recursos de frequência. Isto é baseado na ideia de que uma banda de uplink do sistema P-MP TDMA BWA fornecerá slots de interferência relativamente pequenos, que não são usados por estações de assinantes próximas. Em outras palavras, existem pequenos slots de interferência úteis para outro sistema usando a mesma frequência de acordo com sua posição. Então usamos esses pequenos slots de interferência para WLAN. Além disso, o acesso múltiplo por divisão de código de sequência direta (DS-CDMA) pode suprimir essa interferência TDMA, espalhando-a por uma ampla largura de banda. Portanto, no sistema proposto, o DS-CDMA é usado para WLAN na mesma banda do uplink BWA. Também discutimos técnicas de redução da taxa de erros de pacotes WLAN para este sistema. Para confirmar a disponibilidade do sistema proposto, avaliamos o desempenho do sistema por análise numérica e simulação computacional.
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Takeo FUJII, Masao NAKAGAWA, "Frequency Sharing CDMA Wireless LAN Using Uplink Band of P-MP TDMA Broadband Wireless Access" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 7, pp. 1435-1444, July 2000, doi: .
Abstract: In this paper, we propose a combination system of point to multipoint (P-MP) time division multiple access (TDMA) broadband wireless access (BWA) system and indoor wireless local area network (WLAN). In order to realize a high speed wireless communication, a wide bandwidth is required for both access lines and local area networks. The proposed system shares the frequency between BWA and WLAN to achieve an efficient use of frequency resources. This is based on the idea that an uplink band of the P-MP TDMA BWA system will provide relatively small interference slots, which are not used by subscriber stations nearby. In other words, there are useful small interference slots for another system using same frequency according to its position. Then we use such small interference slots for WLAN. In addition, direct sequence code division multiple access (DS-CDMA) can suppress such TDMA interference by spreading it over wide bandwidth. Therefore in the proposed system, DS-CDMA is used for WLAN in the same band with the BWA uplink. We also discuss WLAN packet error rate reduction techniques for this system. To confirm the availability of the proposed system, we evaluate the system performance by numerical analysis and computer simulation.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_7_1435/_p
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@ARTICLE{e83-b_7_1435,
author={Takeo FUJII, Masao NAKAGAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={Frequency Sharing CDMA Wireless LAN Using Uplink Band of P-MP TDMA Broadband Wireless Access},
year={2000},
volume={E83-B},
number={7},
pages={1435-1444},
abstract={In this paper, we propose a combination system of point to multipoint (P-MP) time division multiple access (TDMA) broadband wireless access (BWA) system and indoor wireless local area network (WLAN). In order to realize a high speed wireless communication, a wide bandwidth is required for both access lines and local area networks. The proposed system shares the frequency between BWA and WLAN to achieve an efficient use of frequency resources. This is based on the idea that an uplink band of the P-MP TDMA BWA system will provide relatively small interference slots, which are not used by subscriber stations nearby. In other words, there are useful small interference slots for another system using same frequency according to its position. Then we use such small interference slots for WLAN. In addition, direct sequence code division multiple access (DS-CDMA) can suppress such TDMA interference by spreading it over wide bandwidth. Therefore in the proposed system, DS-CDMA is used for WLAN in the same band with the BWA uplink. We also discuss WLAN packet error rate reduction techniques for this system. To confirm the availability of the proposed system, we evaluate the system performance by numerical analysis and computer simulation.},
keywords={},
doi={},
ISSN={},
month={July},}
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TY - JOUR
TI - Frequency Sharing CDMA Wireless LAN Using Uplink Band of P-MP TDMA Broadband Wireless Access
T2 - IEICE TRANSACTIONS on Communications
SP - 1435
EP - 1444
AU - Takeo FUJII
AU - Masao NAKAGAWA
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2000
AB - In this paper, we propose a combination system of point to multipoint (P-MP) time division multiple access (TDMA) broadband wireless access (BWA) system and indoor wireless local area network (WLAN). In order to realize a high speed wireless communication, a wide bandwidth is required for both access lines and local area networks. The proposed system shares the frequency between BWA and WLAN to achieve an efficient use of frequency resources. This is based on the idea that an uplink band of the P-MP TDMA BWA system will provide relatively small interference slots, which are not used by subscriber stations nearby. In other words, there are useful small interference slots for another system using same frequency according to its position. Then we use such small interference slots for WLAN. In addition, direct sequence code division multiple access (DS-CDMA) can suppress such TDMA interference by spreading it over wide bandwidth. Therefore in the proposed system, DS-CDMA is used for WLAN in the same band with the BWA uplink. We also discuss WLAN packet error rate reduction techniques for this system. To confirm the availability of the proposed system, we evaluate the system performance by numerical analysis and computer simulation.
ER -