Hrl Laboratories, LLC

The Boeing Company

Raytheon Company

Bong Kyu Ryu

George Dionyssios Kondylis

Son K Dao

Troy Dean Rockwood

Tamer El Batt

Jason C Erickson

Mahesh Marina

James X Smallcomb

Ulas Kozat

One embodiment of the present invention is a hybrid authentication system () for securing communication. In this embodiment, the system () includes a distributed authentication infrastructure () with a series of nodes () in communication with each other. These nodes () are intended to perform a series of functions, one of these functions being the authentication of other nodes. The system further includes a centralized authentication infrastructure (), which is later integrated into the distributed authentication infrastructure () after the distributed authentication infrastructure () has been established. The centralized authentication infrastructure () includes a central server () coupled to the nodes () for verifying the identification of the nodes () and/or granting permission to those nodes ().

Method and hybrid system for authenticating communications

A computer network uplinking system, method, and computer program product are presented for allocation of network resources. A controller tier includes a controller nodehaving a processor, a memory, and a communication interface. Also, an uplinking tier includes uplinking nodes, with a processor, a memory, and a communication interface. The nodescommunicate the controller nodein frames. Current and next frames are represented as K and K+1. The nodesrequest reservations from the controller nodebased on the data each needs to transmit. The controller nodegenerates a control signal based on the reservation requests to assign slots of a information subframe of the next frame K+1 to the nodesbased on the priority allocated to the nodeand the data each needs to transmit. The nodesthen transmit in their assigned slots.

Priority-based dynamic resource allocation method and apparatus for supply-demand systems

A method for establishing and maintaining a wireless ad hoc network comprising backbone nodes which forward packets through the network and non-backbone nodes which are capable of using the network, but do not forward packets. Signaling packets containing one or more protocol support records are periodically generated and transmitted by each node to neighboring nodes and are forwarded through the network by backbone nodes. Non-network nodes are initially selected to become backbone members during a SELECTION process based on an assessment of the node's connectivity relative to its neighbors. Link quality between nodes is monitored and used during an EXPANSION process in which additional non-network nodes may become backbone members. Disconnected backbone segments are interconnected during a CONNECTION process and the network is maintained during a MAINTENANCE process by periodically assessing the value of a backbone node's membership in the backbone. Efficient multicast routing is supported over the backbone by dynamically establishing and maintaining multicast trees. Signaling packets are periodically and frequently generated, thereby facilitating rapid adaptation to network changes. Further, the signaling packets are efficiently forwarded only by backbone nodes, thereby reducing bandwidth associated with establishing and maintaining the network.

Network protocol for wireless ad hoc networks

An apparatus, a method, and a computer program product for effective communication routing of unicast and broadcast data traffic in wireless ad-hoc networks are presented. The routing technique separates the signaling and data transmission portions of a data frame such that the length of the signaling portion is independent of the length of the data portion. In the signaling portion, reservations are able to be performed and confirmed, while the data portion also includes a reservation confirmation portion which allows reservations made in during the signaling portion of the frame to be confirmed immediately prior to transmission of the data. In addition, the present invention also provides a mechanism for dynamically adjusting reservations.

Method and apparatus for adaptive bandwidth reservation in wireless ad-hoc networks

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Thousand Oaks, CA, United States of America

Bong Kyu Ryu