Ubiquitous Networking in Heterogeneous Environments

摘要

This paper discusses the challenges in networking posed by the emerging field of ubiquitous networking and the deployment of heterogenous wireless networks. It reveals three fundamental problems in future networking: network interface management, interface co-existance, and support for adaptive mobility. It describes a testbed to conduct experiments in heterogeneous environments, including low and high mobility scenarios. It presents a scheme that improves handoff performance in an overlay network model. The paper concludes with a discussion of the work in progress, and the key issues that need to be addressed for achieving ubiquitous networking.