Rockwell Collins, Inc.

T J T Kwon

James A Stevens

Thomas L Tapp

Ian R Worden

Scott A Bailey

Robert W Hartney

A system and method for hybrid any-cast (unicast, multicast and anycast) routing in a mobile ad hoc communication network (MANET) is disclosed. In embodiments, each communication node of the MANET may implement on-demand routing functions whereby the node does not establish or maintain routes to destination nodes unless there is active communication, discovering routes via flooding of data packets in transit. Each communication node may select, or may transition from on-demand to, proactive routing functions. Proactive nodes first establish routes to clusters of other proactive nodes by flooding, and receiving acknowledgments from, the other proactive nodes. Each cluster of proactive nodes maintains routes within the cluster and establishes communication routes outside the cluster by flooding and relaying of routing status messages via clusterhead and gateway nodes. A single MANET can support clusters of proactive nodes within a network of on-demand nodes and dynamic transitions between proactive and on-demand status.

Zero overhead efficient flooding (ZOEF) oriented hybrid any-cast routing for mobile ad hoc networks (MANET)

A multi-node communication network and a method. The multi-node communication network may include a plurality of nodes, wherein the multi-node communication network may be configured to use beaconless allocation of slots to reserve transmission resources. The method may include: providing a multi-node communication network comprising a plurality of nodes; and using beaconless allocation of slots to reserve transmission resources for the multi-node communication network.

Network using beaconless allocation of slots

A communication node of a multi-node communication network may include a communication interface and a controller communicatively coupled to the communication interface. The controller may be configured to: transmit one or more data packets over an in-use channel to one or more additional communication nodes of the multi-node communication network; determine an in-use channel quality indicator (CQI) value (CQI) of the in-use channel; determine a self-degradation value (SDV) indicative of channel quality degradation attributable to the multi-node communication network; determine a candidate CQI value (CQI) of an identified candidate channel different from the in-use channel; determine a first CQI difference value (CQI); transmit one or more data packets over the in-use channel if CQIdoes not exceed a CQI threshold value (CQI); and transmit one or more data packets over the candidate channel if CQIexceeds CQI.

Growing community of inventors

Marion, IA, United States of America

T J T Kwon