Users, especially enterprise users have more requirements for services along with the fast development of communication technologies and the enterprises ’ communication infrastructure construction. Unified communicat...Users, especially enterprise users have more requirements for services along with the fast development of communication technologies and the enterprises ’ communication infrastructure construction. Unified communications service provides a solution for the convergence of voice, data, and multimedia. It allows users to enjoy various communication services anytime and anywhere flexibly. A superior unified communications service platform has VoIP communication, status presence and Instant Messaging (IM) service capabilities, and supports a lot of services. Meanwhile, the unified communications service platform provides open service interfaces for the seamless convergence with enterprise infrastructure.展开更多
In this paper, a simple adaptive linear feedback control method is proposed for controlling the scaling factor between two coupled unified chaotic systems to a desired value, based on the invarianee principle of diffe...In this paper, a simple adaptive linear feedback control method is proposed for controlling the scaling factor between two coupled unified chaotic systems to a desired value, based on the invarianee principle of differential equations. Under this control strategy, one can arbitrarily select the scaling factor. Numerical simulations are given to support the effectiveness of the proposed method and show the robustness against noise. Furthermore, a secure communication scheme based on the adaptive projective synchronization of unified chaotic systems is presented and numerical simulation shows its feasibility.展开更多
文摘Users, especially enterprise users have more requirements for services along with the fast development of communication technologies and the enterprises ’ communication infrastructure construction. Unified communications service provides a solution for the convergence of voice, data, and multimedia. It allows users to enjoy various communication services anytime and anywhere flexibly. A superior unified communications service platform has VoIP communication, status presence and Instant Messaging (IM) service capabilities, and supports a lot of services. Meanwhile, the unified communications service platform provides open service interfaces for the seamless convergence with enterprise infrastructure.
基金Project supported in part by the National Natural Science Foundation of China （Grant Nos 10372054 and 60575038） and the Science Foundation of Southern Yangtze University of China （Grant No 000408）.
文摘In this paper, a simple adaptive linear feedback control method is proposed for controlling the scaling factor between two coupled unified chaotic systems to a desired value, based on the invarianee principle of differential equations. Under this control strategy, one can arbitrarily select the scaling factor. Numerical simulations are given to support the effectiveness of the proposed method and show the robustness against noise. Furthermore, a secure communication scheme based on the adaptive projective synchronization of unified chaotic systems is presented and numerical simulation shows its feasibility.
