A team of researchers from the University of Aberdeen and the Xian University of Technology has found and demonstrated that chaos can be used to transmit information over a wireless physical channel with increased efficiency and security.
Chaos has unpredictable behavior that can provide wide-range advantages in wireless communications. This is because the physical restraints of wireless physical media (like multi-path propagation, interference, etc) can prevent quick transmission of information. Chaotic signals, on the other hand, are irregular and offer broadband spectrum that is easy to generate and difficult to predict over time, which makes them quite desirable for communication applications.
The team demonstrated numerically and experimentally that chaos can be used to create a reliable and efficient wireless communication system. In the experiment, the information was successfully transmitted over a wireless channel in a chaotic signal even when the received chaotic communication signal was severely distorted by the wireless channel constraints. “We also demonstrated that it can be decoded to provide an efficient framework for the modern communication systems,” said H.P. Ren, one of the researchers.
Importantly, the chaotic signal that the researchers used as a basis for their communication system was able to encode any binary source of information in an energy-efficient way.
The team plans to use these methods to develop prototypes for real world wireless communication systems.
Source: American Institute of Physics via Phys.org (phys.org/news/2016-08-chaos-key-wireless.html)
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