XXXVIII Simpósio Brasileiro de Telecomunicações e Processamento de Sinais

Neste trabalho é feita uma análise teórica comparativa de nanoenlaces ópticos sem fio, formados por nanoantenas plasmônicas Yagi-Uda e dipolo em três situações, a primeira com as nanoantenas posicionadas no espaço livre, a segunda com as nanoantenas em cima de um substrato truncado de dióxido de SiO2 , e a terceira com as nanoantenas em cima de um...

A neural network is used to improve signal strength prediction of a mobile radio channel in a vegetated environment. For this, a measurement campaign was carried out in Niterói, Rio de Janeiro, generating data for training and testing the network, with variations in frequency, height of the transmission antenna and routes, taken as input data to the...

This paper presents QoN++, an extension of the QoN-ASW algorithm that manages information contained in data buffers of nodes in a delay and disruption-tolerant network (DTN) and adjusts the data relay strategy according to the quality of the network nodes. QoN++ can increase delivery rates at the cost of a small increase in the average delay. In our...