基于CP-OFDM的多目标场景集成远距离感知与通信
摘要
6G通信系统承诺通过利用正交频分复用（OFDM）通信信号实现感知功能。然而，OFDM系统内含的循环前缀限制了感知范围， necessitating compensation techniques to detect small, distant targets like drones. In this paper, we show that state-of-the-art coherent compensation methods fail in scenarios involving multiple targets, resulting in an increased noise floor in the radar image. Our contributions include a novel multi target coherent compensation algorithm and a generalized signal-to-interference-and-noise ratio for multiple targets to evaluate the performance. Our algorithm achieves the same detection performance at long distances requiring only 3.6% of the radio resources compared to classical OFDM radar processing. This enables resource efficient sensing at long distances in multi target scenarios with legacy communications-only networks.
引用
@article{arxiv.2501.11591,
title = {Integrated Long-range Sensing and Communications in Multi Target Scenarios using CP-OFDM},
author = {Benedikt Geiger and Silvio Mandelli and Marcus Henninger and Daniel Gil Gaviria and Charlotte Muth and Laurent Schmalen},
journal= {arXiv preprint arXiv:2501.11591},
year = {2025}
}
备注
Accepted at 14th International ITG Conference on Systems, Communications and Coding (SCC), Karlsruhe, Germany