Bbn Technologies Corporation

Raytheon Bbn Technologies Corp.

Cesar A Santivanez

Jason Keith Redi

Subramanian Ramanathan

Joseph Jacob Weinstein

Daniel Alan Coffin

Vladimir Rosenzweig

Gentian Jakllari

This invention relates to systems and methods for communication in a wireless ad hoc network that employs multi-packet reception. The wireless network includes a transmitting node configured to transmit a control packet to a receiving node while other nodes within a transmission range of the transmitting node are involved in ongoing communication. The receiving node is configured to receive the control packet while simultaneously receiving a second packet from a second transmitting node, and to process the control packet without aborting the receiving of the second packet. Methods for transmitting and receiving multiple packets simultaneously are also presented.

Carrier sense multiple access (CSMA) protocol with multi-packet reception (MPR) in a wireless ad hoc network

The invention relates generally to systems, methods and/or devices for joining, generating, maintaining, and/or multicasting information via a multicast mesh.

Methods for wireless mesh multicasting

A method () and system () provide directional medium access control for wireless nodes () in a wireless network (), each of the nodes () having a transceiver () and a plurality of antennas () in selective communication with the transceiver (). Packets () are transmitted from a transmitting node () of the nodes () when a channel () is sensed as being free in a beam direction of a selected one of the antennas (), and in accordance with a pre-determined transmission mode () for the data packet (). The transmitting node () is periodically placed in a forced idle state, thereby being prevented from transmitting data packets (), but being able to receive and respond to data packets () from other nodes ().

Directional carrier sense medium access for wireless nodes

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Boston, MA, United States of America

Cesar A Santivanez