SYNCHRONIZATION OF CHEN SYSTEM BASED ON PASSIVITY TECHNIQUE FOR CDMA UNDERWATER COMMUNICATION
2007
There exists an increasing demand for reliable, high capacity underwater acoustic networks (UANS), as evidenced by t he large volume of research invested over the last decade in overcoming the difficulties inherent with propagation of information bearing signals through shallow water regions. In this paper, we investigate the problem synchronization of chen system based on passivity technique for Code Division Multiple Access (CDMA) underwater communication in order to minimize interference (MAI) caused by the multiple access by using Chen system for spreading sequence, assure the transmitter-receiver synchronization and secure the transmission information. The nu- merical result presented show that system is quickly and perfectly synchronized with the proposed method. Keywords: Underwater acoustic network, Passivity, Chen system, CDMA and control synchronization
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