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Atheros wlan administration11/19/2022 ![]() ![]() ![]() New real-time environment tests were conducted, and we also added into architecture a new Encryption and Decryption component. We added formal verification model, Colored Petri Nets, which prove correctness and scalability of the radio resources control for large networks. We already presented our initial experiments in two conference papers which are extended in this paper. The personal access point does not require any modification in physical and medium access (MAC) layers. The SDN allows one to use standard components for this concept. The reasons of selecting the SDN architecture for the concept of a personal access point are: representation of the modern approach in networking distributed networks use non-standard components for required functionality simplify solving problem of radio resources control and does not introduce additional problems. Our vision is to follow recent trends and provide solution to simplify network management based on SDN WLAN infrastructures and good mobility management. The reduction of the handover time was achieved by release of the standards IEEE 802.11r and IEEE 802.11k but the decision on handover performing is still situated at the client side. The reauthentication time was increased by release of standard IEEE 802.11i. The process includes discovery, reauthentication and reassociation phases. In the process of performing a handover, the station needs to reassociate to a new access point. Another drawback is possibility to make association only to one access point. A decision about a client’s handover is performed by client stations which can lead to decreased network performance because a client does not know all the information about network. The original IEEE 802.11 standard was not primarily focused on providing good client mobility but more focused on network connection. The key aspect of the efficient management is providing a client mobility with minimal loss in quality of service. This trend especially targets enterprise WLAN infrastructure segment because it will naturally lead to a decrease in network management complexity and increase in reliability and security. This brings new opportunities for Wi-Fi network ecosystems, e.g., collecting, processing own analytical network data and acting on them. Furthermore, an actual state of the technology has already introduced more extensive programmability, automation and machine learning capabilities for Wi-Fi infrastructure. This requires dramatic simplification of Wi-Fi network management. One of the actual challenges of the Wi-Fi industry is to achieve more efficient management of wireless network ecosystems including a wide range of different segments. The design was developed to demonstrate SDN WLAN architecture efficiency. Client’s mobility was integrated into both scenarios. The second scenario considers a network congestion in real world conditions. The first scenario was applied to a delay sensitive use case. The second proof of our concept was performed on two scenarios. Finally, the functionality of architecture design and scalability was proven by Colored Petri Nets (CPNs). In parallel, this feature as a side effect unloads processing at the Access Points (APs). Our improvements consist of integrating wireless management to OpenFlow protocol, separating encryption and decryption from an access point. The fast seamless handover with QoS enables efficient usage of radio resources in large networks. The proposed architecture allows communications during device movements without losing a quality of service (QoS). We introduce an improved IEEE 802.11 architecture utilizing Software-Defined Networks (SDNs). This work is focused on improvements of radio resources control scalability similar to mobile networks via handover between cells. Additionally, the enterprise infrastructure can be used to provide functionality for the Internet of Things and Machine to Machine scenarios. Wireless Local Area Network (WLAN) infrastructure is a dominant technology for direct access to the Internet and for cellular mobile data traffic offloading to WLANs. ![]()
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