A new NS2 tool to investigate QoS management over mobile WiMAX

WiMAX is one of the most interesting solutions for broadband wireless access, supporting multimedia traffics and applications through an appropriate QoS flow management both for fixed and mobile devices. To study its performance and to test new functionalities, simulation tools play a central role. In this paper we propose a new simulation module compliant to IEEE 802.16. Our key contribution is to offer the research community a useful tool for the investigation of QoS management on mobility in the WiMAX scenario. The developed tool includes the implementation of five QoS classes and of handover procedures. This module is validated and tested through exhaustive simulations, showing its conformance with the defined specifications.