2022-012 – Variable Rate MIMO for Multi-User Communications Involving Airborne Platforms: Spatial Diversity, To Counter Loss of Radio Frequency Signal When one or More Antenna Elements are in Outage

  • Works in airborne communications where antenna is blocked due to line-of-sight
  • Works regardless of interference
  • Works regardless of a lack of channel state information at the transmitter

Abstract

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.

Advantages

The technology is better as it targets three particular challenges in airborne communications: antenna outage due to blockage of line-of-sight with airborne platforms, the presence of intended or unintended interference, and the channel dynamics that render it impossible to have full channel state information at the transmitter.

Potential Applications

The technology has immediate and future applications in airborne communications, i.e., one or both ends of communication involve an airborne platform, e.g., manned or unmanned aircraft.

Contact Information

Name: Jennifer Crisp

Email: jmcrisp@syr.edu

Phone: 315-443-5196