FBDA: A filtering mechanism based on distance approximation

In this paper, we propose a filtering mechanism called FBDA(Filtering mechanism Based on Distance Approximation) for various kinds of information delivered in a broadcasting environment. FBDA is based on a metric space model in which a client filters out received data that is not within a specified distance of the user´s preferred data. Since the cost of the distance calculation is generally high, we eliminated it by using approximation based on triangle inequality. FBDA offers effective filtering without requiring clients to have high processing capability. Results from experimental simulations verify the effectiveness of FBDA.