Ajuste Din âmico do Tráfego de Gerenciamento em Redes 802.11 Infraestruturadas com Baixa Mobilidade
ResumoIn recent years wireless networks have been used more widely and their monitoring reveals that there are still key weaknesses in implementing the 802.11 protocol that can be changed to improve efficiency and end-to-end performance. In these networks, where the medium is shared, management traffic is an essential element that among other functions allows to maintain connectivity and promote service quality. However, in the case where the networks have low mobility, the frequent transmissions of beacon frames by the access points causes overhead in the channels which can be characterized as unnecessary traffic, which increases linearly at each additional access point. In this work, we present a proposal to modify the 802.11 protocol to support the dynamic adjustment of the transmission interval between beacon frames in order to increase the efficiency of the network. The proposal is based on the observation of certain geographic movement patterns of stations that share the same channel, patterns that are not common on low mobility networks and may indicate if stations are going to associate or dissociate from an access point in the near future. The simulation results show that dynamic tuning can be effective and increase throughput in networks with low mobility stations.
FERREIRA, Gabriel de Carvalho; BARRETO, Priscila Solis; ALCHIERI, Eduardo. Ajuste Din âmico do Tráfego de Gerenciamento em Redes 802.11 Infraestruturadas com Baixa Mobilidade. In: SIMPÓSIO BRASILEIRO DE REDES DE COMPUTADORES E SISTEMAS DISTRIBUÍDOS (SBRC) , 2018 Anais do XXXVI Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos. Porto Alegre: Sociedade Brasileira de Computação, may 2018 . ISSN 2177-9384.