Systems and methods for channel based beamforming for stacked carrier multiple access

A method for enhancing interference cancellation, comprising:

• receiving a signal including stacked carriers at a receiver;
• obtaining samples from two or more of the stacked carriers, wherein the two or more stacked carriers are selected using a steering vector received during a synchronization of the receiver;
• creating a data vector from the samples;
• and
• obtaining a time domain channel estimate using Yule Walker equations, wherein one or more time domain training sequences are used to solve the Yule Walker equations, and wherein the steering vector is calculated based on the time domain channel estimate.

An interference cancellation system, comprising

• a receiver including:
• at least one antenna configured to receive a signal that includes stacked carriers, wherein the receiver is configured to create a data vector from samples obtained from two or more of the stacked carriers selected using a steering vector received during synchronization of the receiver;
• and
• a Fast Fourier Transform processor configured to obtain a channel estimate by solving Yule Walker equations;
• wherein the steering vector is calculated based on the channel estimate.