Clark School Home UMD

ISR News Story

Ephremides, Nguyen, Wieselthier receive U.S. Patent 7,233,584

This schematic shows the allocation of user nodes into groups for increased throughput.
This schematic shows the allocation of user nodes into groups for increased throughput.

Professor Tony Ephremides (ECE/ISR), and Gam Nguyen and Jeffrey Wieselthier of the Naval Research Laboratory received a U.S. Patent for the invention, Group TDMA frame allocation method and apparatus on June 19, 2007.

The invention is a method and device that improves multiple-access capability for multihop wireless networks with multiple destinations and randomly generated traffic. User nodes are divided into groups in a way that provides increased throughput. A technique that optimizes the allocation of slots to these groups in periodically recurring frames is also included. This achieves maximum throughput and reduces the energy needed for each successfully transmitted packet.

Both Wieselthier and Nguyen earned Ph.D.s in electrical engineering from the University of Marylannd. Ephremides advised Wieselthier and ECE Professor Emeritus Lee Davisson advised Nguyen.

September 19, 2007


Prev   Next

 

 

Current Headlines

Can Cascading Pools Help Restore the Chesapeake Bay?

Maryland students place third in autonomous drone race

Bhattacharyya awarded NIH Grant to Explore Real-time Neural Decoding for Calcium Imaging

UMD Transportation Experts Awarded $1 Million DOE Grant to Reduce Transportation Energy Use and Emissions

With Engineering Projects, UMD Students Seek to Boost Education Access, Public Health, and Sustainability

Maryland Robotics Center students participate in FAA STEM outreach event

Shoukry, Krishnaprasad receive NSF grant for resilient-by-cognition cyber-physical systems

Maryland Robotics Center sponsors grad student project on robotics in farming

UMD researchers awarded $1M NSF grant to develop new methods to generate single photons for quantum research

NSF funds Shamma, Espy-Wilson for neuromorphic and data-driven speech segregation research

News Resources

Return to Newsroom

Search News

Archived News

Events Resources

Events Calendar