In recent years, there have been important efforts focusing on providing suitable services for mobile networks users and on supporting their increasing demands. One promising standard is called Long Term Evolution Advanced (LTEA). LTE-A uses different techniques (such as Coordinated Multipoint CoMP) to deal with bottlenecks to improve performance, in particular for users at the edge of the cells. Here, we show a simulation study focused on the Shared Segmented Upload (SSU) algorithm, which deals with these problems. We use the Discrete Event System Specification (DEVS) formalism to model two different approaches. The simulations show how the SSU algorithm improves services for cell-edge users. We show how to define these kinds of applications using a formal framework like DEVS.