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This paper suggests a system architecture for wireless wide-area-networking access using adhoc networking between a mobile Client node without direct connectivity to a wireless-wide-area-network and a mobile Service Provider node with connectivity to a wireless-wide-area-network. It provides a means for securely providing such adhoc wireless networking services using a Server for tunneling and routing, registration and authentication. The architecture also provides support for handoff of a Client node from one Service Provider to another with persistence of a tunnel between the Client and the Server enabling a soft-handoff.
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