—The DARPA CORONET project seeks to develop the target network architectures and technologies needed to build next-generation long-distance IP-over-Optical-Layer (IP/OL) networks. These next-generation networks are expected to scale 10–100 times larger than today's largest commercial IP/OL network. Furthermore, DARPA has established advanced objectives for… (More)
We enhance the potential cost savings from optical network transparency by applying Connected Dominating Sets and impairment-aware routing, thus reducing the density of OEO nodes substantially below that obtained with more straightforward path improvement heuristics. The funding support of NIST ATP contract 70NANB8H4018 is gratefully acknowledged.
IP over optical network performance can be improved with dynamic bandwidth allocation, depending on the reallocation paradigm and the network topology. Under high connectivity, dynamic bandwidth allocation provides a notable boost to the network's traffic-carrying capacity.
We address the requirements and design of bandwidth on demand networks in the context of grid services. Regardless of the deployment scenario for grid services (e.g., commercial or research), there is a need for efficient use of network facilities and a need to meet the performance requirements of the grid services users. We present quantitative analysis… (More)
Network coding, an emerging field of research, provides a means to create efficient all-optical multicast networks that feature hitless reconfiguration. Here a photonic bitwise exclusive-OR hardware element supplies the key enabling functionality.
— A dynamic optical network that adjusts quickly and automatically to changes in offered traffic load provides performance superior to that of a network of fixed, static optical connections only under certain conditions, such as a high degree of interconnectivity among the network nodes and a coarse granularity of traffic demands relative to link capacity.
A previous paper demonstrated that spacetime transformations consistent with the principle of relativity can be derived without assuming explicitly the constancy of the speed of light. Here we correct an error in the earlier paper while showing that this derivation can be done under weaker assumptions, in particular, without an implicit assumption of… (More)
Data in the Optical Domain Networks (DOD-N) can suffer high packet drops owing to small optical buffer capacities. We present a technique to reduce packet drops that relies on the relative primeness of two integers.
—We have demonstrated powerful new techniques for identifying the optical impairments causing the degradation of an optical channel. We use machine learning and pattern classification techniques on eye diagrams to identify the optical impairments. These capabilities can enable the development of low-cost optical performance monitors having significant… (More)