Networking

Lattice Signal Sets to Combat Pulsed Interference From Aeronautical Signals

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Executive Summary

The inlay approach for the Broadband Aeronautical Multicarrier Communications (B-AMC) system is exposed to severe interference from the adjacent channels of the Distance Measuring Equipment (DME) system. Here, the authors propose a simple technique to mitigate DME interference and subsequently enable transmission in the spectral gaps of the DME channels. The proposed technique uses a precoding at the transmitter based on employing lattice signal sets in order to modify the shape of the DME signal spectrum. Hereto, a simple clipping method is applied to the received subcarriers to mitigate the impact of the DME interference.

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