Xprt Solutions

About Xprt Solutions

Xprt Solutions is a company that received a Department of Defense SBIR/STTR grant for a project entitled: Reservation-based Quality of Service (QoS) in an Airborne Network. The abstract given for this project is as follows: This proposal is to investigate IntServ signaling protocol options suitable to provide reservation-based QoS in an airborne network composed of heterogeneous waveforms. The technical objectives of Phase I are:  to investigating potential IntServ signaling protocols Aggregate RSVP with pre-emption RSVP Proxy Measurement-Based Admission Control  to establish a simulation environment for analyzing potential algorithms  to demonstrate analysis findings using simulation and provide recommendations The primary analysis simulation environment will utilize the OPNET Discrete Event Simulator. All three approaches will utilize the same basic framework, where the airborne backbone network is constructed as a medium fidelity representation, so that different levels of performance can be established, based on input from the Government sponsors. In higher fidelity, each approach will be modeled and analyzed as separate solutions and together as a total end-to-end solution. The results of this study will be used to produce final recommendations and serve as the basis for prototypes developed in Phase II. Xprt Solutions is a company that received a Department of Defense SBIR/STTR grant for a project entitled: A Reconfigurable Wireless Ad Hoc Networks Architecture for Quality of Service Support. The abstract given for this project is as follows: This SBIR submission describes a proposal by XPRT Solutions Inc. - a DSCI Company, to develop a dynamic QoS aware agent for Manet networks. This effort considers the adoption of four applicable technologies, namely; Measurement Based Admission Control (MBAC)(that enables the network to respond to perceived status based on a measurement of network performance), Cross Layer Signaling, QOS Edge Technology (that supports various functions including reactive flow control, proactive flow control, delivery assurance, IA, and packet policing) and Network Topology Based on Governing Dynamics (that enables the network topology to be modified to maximize network throughput under various loading conditions). The overall QoS-aware design will consider the major areas of QoS to include Per-Hop, Path, Overhead Traffic and Applications. These areas will be applied in support of identified network functional requirements/identified network capabilities that need to be provided in support of the E2E QoS requirements. A Proof-of-Concept demonstration will be conducted towards the end of Phase I assessing the agent in terms of established performance metrics. A Phase I Option period is proposed for development of detailed systems architecture and prototype component development (e.g., adding new QOS edge technologies based on functional requirements). Xprt Solutions is a company that received a Department of Defense SBIR/STTR grant for a project entitled: Modeling and Simulation for Higher Fidelity of Commercial SATCOM Capability as a Design Aid to the Planning and Decision Making Process.. The abstract given for this project is as follows: This proposal is to develop a SATCOM resource model/toolset to provide the military SATCOM community the ability to examine communications systems' performance with respect to achieving maximum data rates for a given set of SATCOM terminals. The model will analyze the transmission capacity of potential SATCOM systems based on the required traffic and other factors including site location, characteristics of terminals and transponders, rain rate statistics, etc. The tool will allow users to allocate SATCOM carriers and assess transponder bandwidth for specific SATCOM products. The efforts for Phase I entail the establishment of a network model for the warfighting scenario that will consider traffic from different classes of services and different message precedence levels. A SATCOM library to support a high fidelity assessment of SATCOM terminals/components will be built within OPNET. The proposed model will consist of three major parts: communications traffic and analysis modeling, SATCOM resource and link analysis modeling, and SATCOM performance assessment modeling. The Phase I effort will apply/consider the technical approaches and analysis methodologies employed in the development of the related SATCOM Network Planning Tool and conclude with a proof-of-concept to demonstrate the functionalities and capabilities of the proposed toolset.