Fault-tolerant access points in a mobile IPV6 WiFi light urban traffic communication model

This paper presents a mechanism to evaluate fault-tolerant WiFi network performance in a mobile environment. Fault-tolerance at the access point (AP) level is presented in a degraded performance mode. In case of an access point (AP) failure the surrounding APs increase their power to compensate for this failure. Mobile IPv6 is used as mobile protocol for the moving entities. A new metric is introduced to evaluate system performance under degraded performance. This metric takes into account the moving speed of the mobile nodes (MN) as well as the operating power of the APs.