- Patent Title: Node having a multi-user rake receiver for use in a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission with cooperative beamforming
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Application No.: US16661905Application Date: 2019-10-23
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Publication No.: US11082083B2Publication Date: 2021-08-03
- Inventor: Scott David Blanchard , David Kunil Lee
- Applicant: General Dynamics Mission Systems, Inc.
- Applicant Address: US VA Fairfax
- Assignee: General Dynamics Mission Systems, Inc.
- Current Assignee: General Dynamics Mission Systems, Inc.
- Current Assignee Address: US VA Fairfax
- Agency: LKGlobal | Lorenz & Kopf, LLP
- Main IPC: H04J13/00
- IPC: H04J13/00 ; H04B1/7115 ; H04B7/12 ; H04W4/10 ; H04B17/336 ; H04B1/715 ; H04B7/0456 ; H04B7/06 ; H04B7/08 ; H04L1/00 ; H04L27/26 ; H04B7/026 ; H04W24/08

Abstract:
A node is provided that is configured to communicate in a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission using a direct-sequence spread-spectrum (DSSS) waveform. The node includes an antenna and a waveform module having a receiver processing chain. The antenna can receive a plurality of DSSS signals from other nodes on a particular channel, and output a channel that includes the plurality of DSSS signals. The plurality of DSSS signals include transmissions that are directly received from other nodes and multi-path components of those transmissions. The receiver processing chain can include a multi-user RAKE receiver that can combine, when performing demodulation processing, a plurality of transmissions directly received from the other nodes and multipath components of transmissions received from the other nodes. In some implementations, the node can perform cooperative beamforming and adaptive space-spectrum whitening.
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