This letter focuses on enhancing target detection performance for a multi-user integrated sensing and communication (ISAC) system using orthogonal time frequency space (OTFS)-aided cell-free multiple-input multiple-output (MIMO) technology in high-speed vehicular environments. We propose a sensing-centric (SC) approach for target detection using communication signals with or without sensing signals. Power allocation is optimized to maximize the sensing signal-to-noise ratio (SNR) of the proposed SC scheme while ensuring a required quality-of-service (QoS) for the communication user equipment (UEs), and adhering to each access points (APs) power budget. Numerical results show that the proposed SC scheme vastly outperforms a communication-centric method that minimizes the total power consumed at the APs subject to the same constraints.
@article{arxiv.2408.13182,
title = {Target Detection for OTFS-Aided Cell-Free MIMO ISAC System},
author = {Shivani Singh and Amudheesan Nakkeeran and Prem Singh and Ekant Sharma and Jyotsna Bapat},
journal= {arXiv preprint arXiv:2408.13182},
year = {2024}
}
Comments
This work has been submitted to the IEEE for possible publication