MIMO-OCDM-based Joint Radar Sensing and Communication
Lucas Giroto de Oliveira, Benjamin Nuß, Mohamad Basim Alabd, Yueheng Li, Liquan Yu, Thomas Zwick
Abstract
This study investigates two multiplexing schemes for enabling multiple-input multiple-output (MIMO) operation of orthogonal chirp-division multiplexing (OCDM)-based Radar-Communication (RadCom) systems, namely code-division multiplexing (CDM) via outer coding and frequency-division multiplexing (FDM) via frequency shift precoding (FSP). After detailed system model description for both multiplexing strategies, radar and communication aspects of the studied MIMO-OCDM RadCom system are analyzed having the conventional MIMO-OFDM RadCom as a baseline. Finally, it is concluded that CDM based on outer coding may yield better radar and communication performance than its FDM counterpart, while still outperforming MIMO-OFDM in terms of communication at the cost of higher range sidelobe level.