Communications bandwidth enhancement using orthogonal spatial division multiplexing of a sparse antenna array

A method for receiving, using a sparse antenna array, orthogonal frequency division multiplexing (OSDM) reuse signals from two or more satellite antennas, the method comprising:

• receiving, at a first ground station of the sparse antenna array, a first combined signal, the first combined signal comprising a first signal received from a first satellite antenna at an orbiting altitude and a second signal received from a second satellite antenna separated from the first satellite antenna at a first distance, the first and second signals having a shared frequency;
• receiving, at a second ground station of the sparse antenna array, a second combined signal, the second combined signal comprising the first signal and the second signal, the second ground station separated at a second distance from the first ground station;
• receiving, at a first beamformer, the first combined signal from the first ground station and the second combined signal from the second ground station;
• and
• generating, using the first beamformer, a first output signal from the first and second combined signals based on the first distance and second distance, the first output signal comprising one of the first signal and second signal with co-channel interference of the other signal removed.