No abstract

No abstract

No abstract

In this work, we provide an approach for Modeling and Simulation (M&S) -, two-, and three-dimensional movement of crowds. We extend the models above, and propose a more advanced model for crowd movement in multi-level building. Furthermore, we use this model for simulation of building evacuations. We propose another advanced model for crowd modeling, and deploy the model in occupancy analysis of buildings. Simulation results verify the usability of the proposed models.

In this paper we present a new algorithm for detecting mobile Worldwide Interoperability for Microwave Access (WiMAX) signals in cognitive radio systems, which is based on preamble-induced second-order cyclostationarity. We derive closed form expressions for the cyclic autocorrelation function (CAF) and cyclic frequencies (CFs) due to the preamble, and use these results in the proposed algorithm for signal detection. The algorithm is illustrated with numerical results obtained from simulations, which demonstrate its efficiency under diverse scenarios.