ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING EQUALIZATION USING DEEP NEURAL NETWORK

Patent №

US 11,005,697

Granted

2021-05-11

Filed 2019

Owner

CISCO TECHNOLOGY, INC.

Lab

AI components

3

ml · vision · hardware

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

16558942

Orthogonal frequency-division multiplexing (OFDM) equalization using a Deep Neural Network (DNN) may be provided. First, a signal in a packet structure may be received at an OFDM receiver from an OFDM transmitter. The signal may have distortion. Training constellation points, pilot constellation points, and data constellation points may be extracted from the signal based on the packet structure. Each data constellation point may correspond to a data subcarrier within a data symbol of the signal. Next, the training constellation points and the pilot constellation may be provided as input for the data symbol to a DNN. A coefficient for each data subcarrier within the data symbol that reverses the distortion may be received as output from the DNN. Then, the coefficient for each data subcarrier may be applied to the corresponding data constellation point to determine a per subcarrier constellation point prediction.

Machine learningVisionAI hardwareH04L 27/261H04L 27/2649G06N 3/0464G06N 3/08G06N 3/09H04L 25/03165H04L 27/01

AI classification

Machine learning1.00
AI hardware0.90
Vision0.62
Evolutionary computation0.03
Natural language0.01
Speech0.00
Planning0.00
Knowledge representation0.00

Ownership

CISCO TECHNOLOGY, INC.

assignment · 502500444

Assignors

LISTON, ROBERT EDWARD, APOSTOLOPOULOS, JOHN GEORGE

On an employer assignment, the assignors are typically the inventors.

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