Service Provider Wi-Fi Networks: Scaling Signaling Transactions
Click here to download now
Overview: Wi-Fi adoption is in the midst of a transition, from being viewed purely as an extension of the fixed broadband business toward becoming a core capability that is being integrated into end-to-end service provider networks, delivering data connectivity that can complement conventional cellular data access. The recently introduced Wi-Fi Alliance (WFA) Wi-Fi CERTIFIED Passpoint certification program (hereafter referred to as Passpoint) enables smartphone devices to make use of smart card credentials to authenticate themselves to service provider Wi-Fi networks, addressing one of the key barriers to adoption of Wi-Fi by service providers - ease of use. The use of Extensible Authentication Protocol for GSM Subscriber Identity Module (EAP-SIM) and EAP for UMTS Authentication and Key Agreement (EAP-AKA) is seen as an important step in improving the experience of smartphone users on Wi-Fi networks, bringing them on a par with cellular networks where network selection and authentication are fully automated and usually hidden from the user, even in roaming scenarios.