Frequency Diverse Array OFDM System for Joint Communication and Sensing
Marcin Wachowiak, Andr\'e Bourdoux, Sofie Pollin

TL;DR
This paper analyzes a Frequency Diverse Array (FDA) combined with OFDM for joint communication and sensing, evaluating its performance metrics like ISL and EVM against system parameters.
Contribution
It provides a performance analysis of FDA-OFDM systems for joint communication and sensing, highlighting the effects of system parameters on key metrics.
Findings
Performance varies with scanning frequency, number of antennas, and subcarriers.
FDA-OFDM can achieve effective joint communication and sensing.
Comparison with SISO OFDM shows distinct advantages in certain metrics.
Abstract
The frequency-diverse array (FDA) offers a time-varying beamforming capability without the use of phase shifters. The autoscanning property is achieved by applying a frequency offset between the antennas. This paper analyzes the performance of an FDA joint communication and sensing system with the orthogonal frequency-division multiplexing (OFDM) modulation. The performance of the system is evaluated against the scanning frequency, number of antennas and number of subcarriers. The utilized metrics; integrated sidelobe level (ISL) and error vector magnitude (EVM) allow for straightforward comparison with a standard single-input single-output (SISO) OFDM system.
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Taxonomy
TopicsAntenna Design and Optimization
