Powerwave Cognition, Inc.

Raytheon Company

Timothy J Hughes

Terry E Flach

Tyler J Ulinskas

Wendell Y Kishaba

James S Tsusaki

Arthur E Anderson

Deanna K Harden

Marina Gurevich

Kurt I Winckler

Rita R Rabbath

Daniel R Cormier

Chau T Trinh

John D Nguyen

Richard C Ascheri

According to an aspect, a method for estimating available user data rate in a communications channel is provided. Node weight selection parameters are monitored by a resource manager executing on a node in communication with neighbor nodes. Neighbor node weight selection parameters are analyzed by the node. The node determines whether a change to a node weight or a neighbor node weight is needed to balance the available user data rate. The available user data rate is estimated for the node and the node weight is predictively adjusted as needed. The available user data rate is estimated for one or more of the neighbor nodes and an estimate of the neighbor node weight is generated as needed. A scheduler for the communications channel is updated based on the node weight and the estimate of the neighbor node weight.

Estimation of available user data rate in a communications channel

Presently disclosed are a multichannel receiver and a method of operating it. The multichannel receiver includes a first channel circuit of N channel circuits. The first channel circuit includes a band pass (BP) filter and a gain control feedback circuit configured to adjust a signal provided by the BP filter with respect to a reference voltage.

Multiple signal receiving

In a Mobile Ad Hoc Network (MANET), each node calculates a bandwidth output value representative of data output requirements for the node relative to the transmit time slots available to the node. This value is shared with other nodes in the MANET and may be employed to more efficiently allocate channel usage among nodes as traffic demands and network topology change.

Dynamic channel sharing using bandwidth metrics

In a Mobile Ad Hoc Network (MANET), multi-metric information is gathered and applied to a cost-based route calculation. In particular, each node gathers resource metrics from neighboring of nodes, along with data rate and reliability information for data links to and from the node. This information is applied to a costing algorithm such as Dykstra' Open Shortest Path First algorithm to obtain routes through the network. This approach may be adapted with suitable modifications to use with unicast traffic or with a multicast forwarding group.

Multi-metric routing calculations

In one aspect, a method to schedule network communications in a network having nodes connected by links includes sending a bandwidth value of a first node for each link connected to the first node to neighbors of the first node, receiving bandwidth values from the neighbors of the first node; and determining node weight values of the first node and the neighbors of the first node based on the bandwidth values received from the neighbors of the first node and the bandwidth value of the first node. The method also includes sending the node weight values of the first node to the neighbors of the first node, receiving the node weight values from the neighbors of the first node, determining access values for each node based on a fair access technique and determining network scheduling based on the access values and the node weight values.

Communication scheduling of network nodes using fair access and weighting techniques

In one aspect, the invention is a multichannel receiver. The multichannel receiver includes a first channel circuit of N channel circuits. The first channel circuit includes a band pass (BP) filter and a gain control (GC) feedback circuit configured to adjust a signal provided by the BP filter with respect to a reference voltage.

Growing community of inventors

San Diego, CA, United States of America

Timothy J Hughes