Adaptação Automática de Taxa em Redes 802.11 Densas

Kleber Vieira CardosoJosé Ferreira de Rezende

This paper presents an evaluation of automatic rate adaptation algorithms in IEEE 802.11 networks under severe contention for media access. In this sort of scenario, the mechanisms evaluated in this paper present low performance and the other ones proposed in the literature demand modifications of the standard or face restrictions related to the support offered by the commercial hardwares. In this context, a new automatic rate control mechanism is proposed and evaluated. It is shown that the new mechanism is simple and easy to implement in devices that follow the standard.

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