Access point evaluation using packet transfer ratio in multihop wireless networks

In a multihop wireless network (MWN), access points (APs) in an MWN should provide high reliability to improve network availability. However, APs do not always work well. An AP may stop functioning due to a power outage or may malfunction for various reasons, including malicious attacks. To maintain MWN availability, the network should work autonomously to treat unreliable APs appropriately. In this paper, we propose an AP evaluation system in which each AP attempts to evaluate neighboring APs in collaboration with other APs that are neighbors of the target. Furthermore, each AP exchanges its evaluation result with other APs and attempts to use the result to control the MWN. We evaluate our proposed scheme using simulations to confirm its effectiveness.