F. Chiaraluce, E. Gambi, and P. Pierleoni(Italy)
Spread Spectrum Techniques, Chaotic Communications, Multi-Access, Bit Error Rate.
We demonstrate that the good correlation properties shown by segments of Lorenz chaotic signals can be efficiently used to propose spread-spectrum transmission systems with low error rates in the case of multi-user environments based on code (or sequence) division. Well known schemes using Gold sequences are assumed for comparison. It is shown that in a practical scenario where the interfering signals exhibit a random delay with the desired signal, i.e. the users’ transmissions are independent, the chaotic system outperforms the Gold system.
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