Andrew A. Gray

Intelligent routing and bandwidth allocation in wireless networks (2008)

Ioannis N. Kassabalidis, Arindam K. Das, Payman Arabshahi, Andrew A. Gray

Abstract – Sensor networks and satellite constellations face a number of challenges for reliable and robust communications. Increasingly heterogeneous nodes and a multitude of new emerging Earth...

Intelligent routing and bandwidth allocation in wireless networks (2008)

Ioannis N. Kassabalidis, Arindam K. Das, Payman Arabshahi, Andrew A. Gray

Abstract – Sensor networks and satellite constellations face a number of challenges for reliable and robust communications. Increasingly heterogeneous nodes and a multitude of new emerging Earth...

Parallel Adaptive Equalizer Employing Sub-Convolution: VLSI Architecture Realized in a Field Programmable Gate Array (2008)

Andrew A. Gray, Scott D. Hoy

Abstract-This paper provides an overview of a parallel adaptive equalizer architecture and its highrate FPGA realization. The very large scale integration (VLSI) architecture for implementing a...

A gigabit-per-second Ka-band Demonstration using a reconfigurable FPGA modulator (2008)

Lee, Dennis, Gray, Andrew A., Kang, Edward C., Tsou, Haiping, Lay, Norman E., Fong, Wai, ...

Gigabit-per-second communications have been a desired target for future NASA Earth science missions, and for potential manned lunar missions. Frequency bandwidth at S-band and X-band is typically...

Mars Aeronomy Explorer (MAX): study employing distributed micro-spacecraft (2008)

Shotwell, Robert F., Gray, Andrew A., Illsley, Peter M., Johnson, M., Sherwood, Robert L., Vozoff, M., ...

An overview of a Mars Aeronomy Explorer (MAX) mission design study performed at NASA's Jet Propulsion Laboratory is presented herein. The mission design consists of ten micro-spacecraft orbiters...

Photon counting techniques for the bandlimited optical channel. (2007)

Lee, Clement G., Gray, Andrew A.

Two methods of estimating received photon counts given a realistic noisy and bandlimited optical channel are presented. The function of estimating photon counts is critical in any optical...

A systems study to determine the attractiveness of solar system bodies and sites for eventual human exploration (2007)

Andringa, Jason M., Gray, Andrew A.

A pre-phase A idea-generation team at the Jet Propulsion Laboratory (JPL), has conducted a study to rank all locations in the solar system based on attractiveness for human exploration. The process...

Object-Oriented Reconfigurable Processing for Wireless Networks (2002)

Andrew Gray Clement, Andrew A. Gray, Clement Lee, Payman Arabshahi, Jeffrey Srinivasan

We present an outline of reconfigurable processor technologies and design methods with emphasis on an objectoriented approach, and both full and partial dynamic reconfiguration. A specific broadly...

Software/hardware reconfigurable network processor for space networks (2001)

Clement G. Lee, Andrew A. Gray, Jeffrey M. Srinivasan, Yong J. Chong, Allen H. Farrington, Kenneth J. Peters, ...

Abstract – We present an overview of long-life reconfigurable processor technologies and of a specific architecture for implementing a software reconfigurable (software-defined) network processor...