Performance Analysis of a Reliable Handoff Procedure for IEEE 802.16e Based Networks

IEEE 802.16 is protocol for fixed broadband wireless access that is currently trying to add mobility among the mobile users in the standard. However, mobility adds some technical barriers that should be solved first, this is the case of HO "Handoff" (change of connection between two base stations "BS" by a mobile user). In this paper, the problem of HO in IEEE 802.16 is approach trying to maintain the quality of service of mobile users. A mechanism for changing connection during HO is presented. A simulation model based on OPNET MODELER v11 was developed to evaluate the performance of the proposed HO mechanism.