Japanese scientists draw on frogs to improve telecommunications

Study of amphibian croaking helps avoid interference in data transmission and saves energy.

11 feb 2019

The patterns observed in the croaking of frogs can be applied to telecommunications to avoid interference in data transmission and save energy, according to the findings of a group of Japanese researchers.

A scientific team from Tsukuba University (center), led by researcher Ikkyu Aihara, created a mathematical model based on the sounds emitted by these amphibians that avoids data transmission errors between devices connected to a network.

When a group of computers or smartphones transfer information at the same time over a network, there is a collision between data packets"; that prevents these devices from ;sending or receiving"; smoothly, explains Aihara.

The researchers studied the croaking of four groups of three male frogs and found that the animals were able to control the intervals of their calls to prevent them from overlapping each other, on a short time scale.

Also, in the longer term, amphibians were able to collectively synchronize their singing or move into a state of silence.

We observed that when one frog croaked, the next frog started and followed the singing simultaneously, something that we then applied to several devices,"; the study leader explained in a telephone interview.

From the analysis of 16 hours of recording, the researchers extracted a mathematical formula that allows to apply the pattern of the sounds of the frogs to the transmissions of data between contacted devices to a network.

Their simulation with 100 devices showed that, like frogs, machines adapted the data transmission interval to avoid interfering with shipments from nearby devices.

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