Modeling and analysis of push-based wireless converged networks

In this paper, we contribute to the design and theoretical understanding of push-based content delivery in a converged broadcasting and cellular network. Specifically, we are interested in the scheme in which the most popular contents are pushed through broadcasting to alleviate the cellular data bottleneck. This strategy not only offloads the multimedia traffics from the cellular network, but also improves the user experience by eliminating download waiting time. To evaluate the performance gains of the converged network, we first develop a framework to mathematically model the converged network, the multimedia content characteristics and the mobile user behaviors. The improvement of the network capacity is then derived and quantified theoretically. Numerical results are also provided to show the significant performance advantages of the converged network over the cellular-only network.