Japanese Tree Frog Calls Trigger New Algorithm For Wireless Networks

Computer science engineers must be familiar with the 'graph colouring problem' in networking. In quest to find better solution to it, researchers at Polytechnic University of Catalonia found inspiration in the most unusual of places. The Japanese tree frog calls. What? Yes, the males of this frog community use a form of calls that helps the females differentiate and locate. Taking this system as the basis of their work, the scientists have come up with an algorithm that assigns different colors to network nodes by using the least possible number of colors without two consecutive nodes being the same color. What happens when two males are too close to one another and they use their call at the same time? The females aren't able to determine the location of the call. Therefore, the males 'desynchronise' their calls or, in other words, not call at the same time in order for a distinction to be made.

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This method of natural self-organisation works really well with wireless networks. Their study comes under the field of 'swarm intelligence', a branch of artificial intelligence that aims to design intelligent systems with multiple agents.

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