Research Of Wireless Access Point Management Techniques In Case Of Hierarchical Access Controller

With the rapid development of mobile Internet, the scale of WLAN(Wireless LAN) increases rapidly. In the large-scale WLAN, the original centralized architecture encountered several problems such as low resource utilization, AC(Access Controller) devices overloaded, expensive device management, quality of services and so on. To address these problems, Pool-Group technology and hierarchical AC has been proposed to reduce the complexity of AC, improve the network capacity, optimize the resource utilization, derease manangement costs and provide efficient and reliable service.Access Point(AP) management is the key technology in a variety of networking. A new AP management technique under the hierarchical AC architecture is proposed to meet the aforementioned challenges. ACs are classified into two kinds: control-layer AC and local-layer AC. Control-layer ACs hold the control information of the whole network and are responsible for the management of the entire network, big data analysis and other non-real-time services. Local-layer ACs are responsible for local data forwarding, local service processing and other real-time services. Hierarchical AC realizes data-control separation and reduce bandwidth requirements. Meanwhile, a hybrid of AP domain and AP group configuration approach is proposed to satisfy the personal AP configuration and facilitate AC pool load balancing. In Addition, Pool-Group technology is introduced into hierarchical AC architecture. The thesis designs a load balancing algorithm and intelligent traffic management strategies for AC Pool-Group distributed devices. Also, the thesis defines four types of AP entities in the current networking.An AP management system based on hierarchical AC architecture is implemented for evaluation. The results show that the approach proposed in the thesis can improve WLAN management performance and quality of service effectively and efficiently.