BANDWIDTH MEASURING DEVICE, BANDWIDTH MEASURING METHOD AND NON-TRANSITORY COMPUTER READABLE MEDIUM

摘要

There is provided a bandwidth measuring device. An extracting unit extracts, as a cutoff frequency, a highest frequency component among frequency components obtained by Fourier transform on transition data indicating a transition of communication congestion traffic with respect to a time in a communication network. A determining unit determines, based on a relationship between an error ratio and the measurement times in a cycle of the cutoff frequency, a minimum value of the measurement times that satisfy an error ratio. A setting unit sets each of measurement cycle and time so as to satisfy both conditions of a maximum value in the measurement cycle determined based on the cutoff frequency and the minimum value of the measurement times in the cycle corresponding to the determined cutoff frequency. A measuring unit measures a bandwidth of communication performed by using the network, based on the set measurement cycle and time.

主权项

1. A bandwidth measuring device comprising:
an extracting unit that extracts, as a cutoff frequency, a highest frequency component among frequency components obtained by performing Fourier transform on transition data which indicates a transition of communication congestion traffic with respect to a time in a communication network to be used; a determining unit that determines, on the basis of a relationship between an error ratio and the number of measurement times in a cycle corresponding to the cutoff frequency, a minimum value of the number of measurement times that satisfy a given error ratio; a setting unit that sets each of a measurement cycle and a measurement time so as to satisfy both conditions of maximum value in the measurement cycle determined on the basis of the cutoff frequency and the minimum value of the number of measurement times in the cycle corresponding to the cutoff frequency determined by the determining unit; and a measuring unit that measures a bandwidth of communication performed by using the communication network, on the basis of the measurement cycle and the measurement time set by the setting unit.