Accepted Papers

  • Dynamic Output For Sampled-Data System With Actuator Saturation Using Quantized Measurements
    Liuwen Li and Shumin Fei, Southeast University, China and Wenlin Zou, Nanjing University of Science and Technology, China
    ABSTRACT

    This paper is focused on thedynamic output feedback control of sampled-data system with actuator saturationusing quantized measurements. The outputsignals are quantized before they are transmitted to dynamic output-feedback controller. An augmentedsystem is constructed through a closed-loop system, which is a model with an interval time-varying delay and nonlinear items. Using discontinuous Lyapunov function andlinear matrix inequality approach, the criterion of asymptotical stability is obtained; furthermore, on the basis of the above stability condition, we design a dynamic output-feedback controller. Lastly, the effective of the proposed method is proved by a numerical example.

  • Secure Group Key Management Protocol for Grid Computing
    Mohammad R. Hassan, Nidal M. Turab and Saleh El-Omar, Al-Ahliyya Amman University, Jordan and KhalilH. Al-Shqeerat, Qassim University, Saudi Arabia
    ABSTRACT

    Group key management is an important functional building block for any secure distributed communication environment. Key distribution techniques are key factors in secure communication in grid computing. Once the secure key management is performed, messages can be securely exchanged among the grid entities. In any group communication systems supporting GRID and cloud-based applications, the communication parties need to communicate with each other as members of a group in a secure manner.Several protocols have been proposed to support secure group key management. This paper presents a new secure password-based group key management protocol for Grid computing environment, which is composed of two dynamic servicing tiers: the grid application that requests grid services, and the grid services that work on behalf of the user.