A MAC and Physical Layer Theoretical Model for IEEE 802.11a Networks Operating Simultaneously with Basic and RTS/CTS Access Schemes
نویسنده
چکیده
We have developed a theoretical cross-layer model that allows assessing the goodput and delay of the IEEE 802.11a local area networks (WLANs) operating simultaneously under the distributed coordination function (DCF) basic access (BA) and request-to-send/clear-to-send (RTS/CTS) medium access control (MAC) protocols under saturated traffic over correlated and uncorrelated fading channels. Resumo. Neste artigo é proposto um modelo teórico que permite analisar de maneira integrada o desempenho das camadas de enlace e física de redes locais sem fio IEEE 802.11a operando simultaneamente no modo básico e no modo RTS/CTS. As expressões analíticas propostas, validadas por meio de simulação da camada física IEEE 802.11a, permitem verificar no desempenho do sistema tanto os efeitos dos protocolos de enlace (e.g. da carga no canal, do tamanho dos pacotes, do algoritmo de resolução da janela de contenção) bem como os efeitos dos protocolos da camada física (e.g. esquemas de modulação, correção de erros, modelos de canal).
منابع مشابه
A MAC and PHY Cross-Layer Analytical Model for the Goodput and Delay of IEEE 802.11a Networks Operating Under Basic Access and RTS/CTS DCF Schemes
We have developed a theoretical cross-layer model that allows assessing the goodput and delay of IEEE 802.11 local area networks (WLANs) operating simultaneously under the distributed coordination function (DCF) basic access (BA) and request-to-send/clear-to-send (RTS/CTS) medium access control (MAC) protocols under saturated traffic over correlated fading channels. A comparison between numer...
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تاریخ انتشار 2006