Distributed Self-Healing for Reconfigurable WLANs

This paper concentrates on self-healing in reconfigurable WLANs. To cope with the accidental network failure, a Distributed Network Self-Healing (DNSH) mechanism, including automatic network failure detection and appropriate network failure recovery is designed for independent reconfigurable APs in high-density WLANs. By automatically applying the DNSH mechanism, not only immediate network failure detection but also effective network failure recovery which taking into account the network coverage and the system capacity both, are achieved. Benefiting from the automatic operation, the external involvement in network management could be minimized, and hence the network operating expenditures could be reduced. Simulation results show that both network coverage and system capacity are ensured by using this DNSH mechanism in reconfigurable WLANs.