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The dramatic success and scaling of the Internet was made possible by the core principle of keeping it simple in the middle and smart at the edge (or the end-to-end principle). However, new applications bring new demands, and for many emerging applications, the Internet paradigm presents limitations. For applications in this new generation of Internet services, structured overlay networks offer a...
This paper presents a field experimentation and demonstration addressing serverless information services that provide both group messaging with ordering guarantees and robust file/media object sharing in a tactical edge communication environment. These serverless information services constitute the main functional components of our real time image and ordered annotation sharing application, called...
This paper presents a multicast routing mechanism supporting the classical IP multicast service model that can dynamically use redundant forwarding in the parts of the network affected by a high rate of topology changes, while converging to regular multicast distribution trees where or when the network becomes relatively stable. The rationale is that intermittent connectivity directly affects the...
We present a new approach to performing adaptive, loop-free, destination-based unicast forwarding in an IP-based network. The approach is an integration of several well-known techniques, including broadcast-based flooding, on-demand route discovery, and link state routing. In this approach, routers are not universally in one routing mode, such as a ‘link-state’, for all destinations but instead apply...
Connecting mobile ad-hoc networks (MANETs) to the legacy layer networks poses numerous challenges that have not been much explored. The internal topology of a MANET and external connectivity to a backbone network will likely vary greatly over time, and MANET nodes need to be able to communicate with nodes in other attached networks as changes occur. Keeping a MANET's multicast routing domain connected...
This paper presents an architecture and a hybrid routing protocol for multi-homed wireless mesh networks that provide uninterrupted connectivity and fast handoff. Our approach integrates wireless and wired connectivity, using multicast groups to coordinate decisions and seamlessly transfer connections between several Internet gateways as mobile clients move between access points. The protocol optimizes...
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