Variable Rate MIMO for Multi-user Communications Involving Airborne Platforms

Biao Chen (Inventor), Janek J. Mroczek (Inventor), Yang Liu (Inventor)

Research output: Patent


A multiple-input multiple-output (MIMO) communication system that addresses three major challenges in airborne MIMO communications, namely, antenna blockage due largely to the movement and orientation of the airborne platforms, the presence of unknown interference inherent to the intended application, and the lack of channel state information (CSI) at the transmitter. The system is implemented on a Diagonal Bell-Labs Layered Space-Time (D-BLAST) MIMO architecture and includes spatial spreading to counter antenna blockage, temporal spreading to mitigate signal to interference and noise ratio degradation due to intended or unintended interference, and a simple low rate feedback scheme to enable real time adaptation in the absence of full transmitter CSI.
Original languageEnglish (US)
Patent number11,569,871
Priority date11/10/20
Filing date11/10/21
StatePublished - May 12 2022


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