Modeling the interference of pulsed radar signals in OFDM-based communications systems

Abstract

Spectrum coexistence between radar and communications systems has received considerable attention recently as it has presented itself as one solution to the increasing demand for higher data rates in communications systems. This paper aims to model the interfering radar signal at the receiver of a communications system that uses orthogonal frequency-division multiplexing (OFDM). As an example, a rectangular-shaped pulsed radar signal is considered, for which the probability mass functions (PMFs) are derived for the amplitude and phase of the radar interference. The derived PMFs are shown to accurately model the radar interference generated via Monte Carlo simulations.