Performance optimization of the initialization process of IEEE 802.16 mesh networks

The IEEE 802.16-2004 standard defines a medium access control (MAC) layer for a mesh network topology. In these networks, wide scale power outages can cause serious disruptions to digital services when centralized scheduling is used. This results in very long service recovery times for all mesh nodes. In this paper we propose a new recovery scheme and study the performance of the initialization process due to service disruption of IEEE 802.16-2004 mesh networks. We implemented an OPNET simulation model of the scheme. Results show that the recovery times obtained with the proposed scheme can be reduced by up to 98% compared with the default mechanism.