The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, we propose a robust synchronization technique for an asynchronous spread spectrum communication system based on chaotic symbolic dynamics modulation. A back-ward iteration of the chaotic map is used to avoid the problem of sensitivity to initial conditions of the chaotic generator. The proposed system integrates a spread spectrum unit, which is used to increase transmission security...
Since many chaotic communication systems presented in the literature show a poor performance or a weak chaotic synchronization in noisy environments, in this paper we present a new chaotic communication system with high performance and robust demodulation process. This system is based on the chaotic symbolic sequence with an error correction coding block. On the receiver side, a Viterbi algorithm...
The use of chaotic signals in digital communications has attracted the attention of researchers because of the random behavior and dynamic properties, and many communication systems based on chaotic modulation have been proposed in the literature. Chaotic synchronization shows poor performance in noisy environments, with the main drawback being that the coherent receiver cannot be implemented in realistic...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.