arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2405.09497cs.ITcs.NIeess.SPmath.IT
收藏

通过任务互信息测量ISAC的离散感知能力

Measuring Discrete Sensing Capability for ISAC via Task Mutual Information

Fei Shang, Haohua Du, Panlong Yang, Xin He, Jingjing Wang, Xiang-Yang Li

AI总结:

本文提出用任务互信息度量ISAC离散感知能力,通过m状态目标与n维独立特征建模,实现细粒度感知优化与资源平衡,并在多个真实场景中验证其与准确率等指标高度相关。

摘要:

6G技术为通信系统执行普适感知任务提供了更广泛的可能性,包括健康监测、物体识别和自动驾驶。由于即使微小的环境变化也可能显著降低系统性能,并且在所有场景中进行长期后验实验评估往往不可行,因此进行先验性能评估以设计鲁棒可靠的系统至关重要。本文考虑一个离散普适感知系统,其中感知目标具有m个不同状态W,可由n维独立特征X^n表征。该模型不仅为在更细粒度上优化感知系统并平衡通信与感知资源提供了可能性,还为无线感知中经典直觉感受(如更多模态和更高精度)提供了理论解释。此外,我们通过真实案例研究验证了所提信道模型的有效性,包括人员识别、位移检测、方向估计和设备识别。评估结果表明,我们的任务互信息与常规实验指标(如准确率)之间的Pearson相关系数超过0.9。代码的开源地址为:https://github.com/zaoanhh/DTMI

英文摘要:

6G technology offers a broader range of possibilities for communication systems to perform ubiquitous sensing tasks, including health monitoring, object recognition, and autonomous driving. Since even minor environmental changes can significantly degrade system performance, and conducting long-term posterior experimental evaluations in all scenarios is often infeasible, it is crucial to perform a priori performance assessments to design robust and reliable systems. In this paper, we consider a discrete ubiquitous sensing system where the sensing target has \(m\) different states \(W\), which can be characterized by \(n\)-dimensional independent features \(X^n\). This model not only provides the possibility of optimizing the sensing systems at a finer granularity and balancing communication and sensing resources, but also provides theoretical explanations for classical intuitive feelings (like more modalities and more accuracy) in wireless sensing. Furthermore, we validate the effectiveness of the proposed channel model through real-case studies, including person identification, displacement detection, direction estimation, and device recognition. The evaluation results indicate a Pearson correlation coefficient exceeding 0.9 between our task mutual information and conventional experimental metrics (e.g., accuracy). The open source address of the code is: https://github.com/zaoanhh/DTMI

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑