Abstract
Public wireless communications will increasingly extend into wireless LAN environments in order to meet the ubiquitous access, high data rate, and local services demands of future Internet appliances. This article offers architectural guidelines for relatively large-scale IP-based WLAN environments configured to accept public access by mobile/portable appliances. By relying on IP-level service mechanisms at the access point, independent of the wireless medium access technology, the WLAN can simultaneously support different air interfaces, franchises for multiple service providers with effective authentication and billing, and a multisegment LAN environment including handoffs. QoS across the air interface is not addressed; this article rather concerns architecture of the wired LAN environment in which wireless access points are imbedded, and its capabilities for QoS and support of the business model.
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