An MIM-aware association control scheme for openflow access points in NOX architectures

Message In Message (MIM) is an emerging wireless technology to improve the capacity of wireless networks, which augments concurrent transmission opportunities of contending wireless nodes. In a MIM-capable communication system, however, the challenging problem is that the concurrent transmission opportunity is restricted by underlying network topologies. In this paper, we propose an MIM-aware association control scheme (MIMAC) that can greatly increase concurrent transmission opportunities by regulating the association among OpenFlow APs in NOX-based wireless systems. MIMAC exploits the distinctive features of NOX architectures, such as maintaining a global view of the network topology and controlling the association among OpenFlow APs in a centralized way. Using simulation-based evaluations, we demonstrate that MIMAC achieves high throughput enhancement by up to 200% compared to legacy WLAN systems.