Regina Rosales Hain

An ad hoc wireless testbed for scalable, adaptive QoS support

We describe the construction of, and our experimental experience with, an ad hoc wireless testbed developed as part of the DARPA Global Mobile Information Systems (GloMo) sponsored MMWN and DAWN projects. The goal of the MMWN/DAWN system is the network-layer support for real-time QoS in large, dense, mobile ad hoc networks. The testbed consists of MMWN/DAWN switches-a single box with an embedded processor, and a commercial radio transceiver, and endpoints-laptops running voice and data applications. We have conducted a number of real-life experiments with this testbed, and report on our experiences and results.

Active network monitoring and control: the SENCOMM architecture and implementation

We present the architecture, design, and implementation of SENCOMM (smart environment for network control, monitoring and management). SENCOMM uses active network technology to comprise a management execution environment (SMEE), which coexists with other execution environments (EEs). Management applications, called smart probes, run in the SMEE. A probe and its data are mobile executable code that are delivered to the active node within an active network encapsulation protocol (ANEP) datagram. Our architecture is designed to actively control, monitor, and manage both conventional and active networks, and be incrementally deployed in existing networks. We present a set of goals, a design philosophy, and a set of basic requirements for controlling, monitoring, and managing networks using the active network technology. We discuss the operation and components of SENCOMM:. the management EE, a protocol, smart probes, and loadable libraries. We discuss the implementation issues uncovered in integrating SENCOMM into a selected EE and the decisions made to resolve them.

Dynamic provisioning system for bandwidth-scalable core optical network

We describe the architecture of PHAROS (Petabit Highly-Agile Robust Optical System), developed under the DARPA CORONET program. PHAROS provides traffic engineering, resource management and signaling solutions for highly-agile, large-capacity core optical networks. PHAROS technology facilitates rapid configuration of network resources to address dynamic traffic needs in future global military and commercial communications, such as localized surges in capacity requirements that result from military operations. PHAROS technology also scales to support bandwidth-intensive, network-centric, collaborative and distributed computing applications, and accommodates the continued growth of video and biometric data services.

Improved capacity utilization via agile wavelength provisioning and protection sharing in global core optical metworks

DARPAs CORONET PHAROS (Petabit Highly-Agile Robust Optical System) provides traffic engineering algorithms and signaling solutions for highly-agile, large-capacity core optical networks. PHAROS technology will facilitate rapid configuration of network resources to address dynamic traffic needs in future global communications, such as localized surges in capacity requirements that result from flash-crowds and smooth recovery from multiple concurrent network faults. PHAROS technology is designed to scale to support bandwidth-intensive collaborative and distributed computing applications, and accommodates the continued growth of video services.