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Ephremides, Rong issued patent for cooperative transmission in wireless networks

Ephremides, Rong issued patent for cooperative transmission in wireless networks

Professor Tony Ephremides (ECE/ISR) and his former student, alumna Beiyu Rong (ECE Ph.D. 2010) have been awarded US Patent 8,542,579 for "Method and System for Cooperative Transmission in Wireless Multi-Hop Networks."

Their invention addresses user cooperation in wireless networks implemented on the network protocol layer level, and attains a higher stable throughput and improved transmission delay. The cooperation is designed between a set of source user nodes transmitting to a common destination, where users with channels providing a higher successful delivery probability, in addition to their own traffic, relay packets of other source users whose transmissions to the destination fails. Each source user node is provided with an ample queue buffer having capacity to accumulate packets inadvertently received from other users in the system in addition to its own packets. Ranking mechanism facilitates in determining the "quality" of wireless channels, and the Acknowledgement mechanism facilitates in coordination of the transmissions in the system. The nodes exchange information on the queues status, and decision is made by a scheduling controller on the priority of transmission.

You can view ISR patents at any time on the patents page.

Related Articles:
Ephremides and colleagues issued U.S. Patent 9,318,232
NSF Funds Novel Research to Create Scalable Wireless Networking, Averting Usage Crisis
Ephremides receives NSF grant to bridge wireless network theories
Ephremides is invited speaker at Workshop on Network Science
Ephremides, Pantelidou co-author new wireless networks book
Ephremides gives plenary talk at IEEE Globecom Conference
Beiyu Rong wins Best Student Paper Award at WiOpt
Alumnus Natalie Hagan Receives Advocating Women in Engineering Award from SWE
Alumnus Profile: Christopher T. Jones
To the Stars: UMD Alumna to Be First African-American Crew Member on the International Space Station

September 27, 2013


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