Study of distributed wireless access point controller

In these days, as proliferating the use of mobile devices like tablet PC and smartphone, wireless AP should be distributed arrangement and cover a wide area by radio signal. There is the necessity of wireless AP controller because administrators of a wireless network can manage remotely and efficiently many APs on distributed area. The most of wireless AP has to use only one controller, so it may cause failure of the whole system in case of having some problem on controller managing APs. Therefore, in this paper, we propose distributed wireless AP controller using replicated key-value store called etcd. The distributed controllers connected by etcd protect the data about the managed AP, even if some controller fails. And each controller manages nearly located AP by using the way of the draft like what is uses in sports. This way using draft can reduce time to communicate between controller and APs and increase an efficiency of managing mechanism. We expect that this proposed method enhances reliability and provides high availability of wireless network managed by the controller.