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arXiv · 2408.13182

Target Detection for OTFS-Aided Cell-Free MIMO ISAC System

Shivani Singh·Amudheesan Nakkeeran·Prem Singh·Ekant Sharma·Jyotsna Bapat
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Abstract

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.

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Shivani Singh, Amudheesan Nakkeeran, Prem Singh, Ekant Sharma, Jyotsna Bapat. 2024-08-23. Target Detection for OTFS-Aided Cell-Free MIMO ISAC System. https://arxiv.org/abs/2408.13182

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