Profile mapping with AAA server in wireless local area

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Title: Profile mapping with AAA server in wireless local area
Author: Wu, Travis
Abstract: In cellular networks user/service profiles of subscribers are maintained in the Home Location Register (HLR) at the Home Network where the subscriber is registered. When the user roams into a foreign network, his user/service profile is downloaded into a Visitor Location Register (VLR) at the foreign network to allow his access to all subscribed services with the same or similar Quality of Service (QoS) to which he had subscribed[1]. However, there is no provision for user profile storage and handling in Wireless Local Area (WLAN)s and this issue has never been addressed. The project proposed by Prof. Nirmala Shenoy and Bruce Hartpence involves roaming from cellular network to WLANs with appropriate QoS mapping. Roaming across IP based wireless networks requires MobileIPv4 (MIPv4) and Authorization, Authentication and Accounting (AAA). The AAA ser- vices can be provided via AAA servers implementing Terminal Access Con- troller Access Control System Plus (TACACS+) or Remote Authentication Dial-In User Service (RADIUS) protocols. The MIPv4 protocol provides roaming capabilities to users by allowing mobile users to use two IP addresses (home address at Home Network and COA at Foreign Network).
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Date: 2006

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