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arXiv · 2601.01152

Towards a Theoretical Framework for Robust Node Deployment in Cooperative ISAC Networks

Haojin Li·Kaiqian Qu·Chen Sun·Anbang Zhang·Xiaoxue Wang·Wenqi Zhang·Haijun Zhang
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Abstract

This paper investigates node deployment strategies for robust multi-node cooperative localization in integrated sensing and communication (ISAC) networks.We first analyze how steering vector correlation across different positions affects localization performance and introduce a novel distance-weighted correlation metric to characterize this effect. Building upon this insight, we propose a deployment optimization framework that minimizes the maximum weighted steering vector correlation by optimizing simultaneously node positions and array orientations, thereby enhancing worst-case network robustness. Then, a genetic algorithm (GA) is developed to solve this min-max optimization, yielding optimized node positions and array orientations. Extensive simulations using both multiple signal classification (MUSIC) and neural-network (NN)-based localization validate the effectiveness of the proposed methods, demonstrating significant improvements in robust localization performance.

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Haojin Li, Kaiqian Qu, Chen Sun, Anbang Zhang, Xiaoxue Wang, Wenqi Zhang, Haijun Zhang. 2026-01-03. Towards a Theoretical Framework for Robust Node Deployment in Cooperative ISAC Networks. https://arxiv.org/abs/2601.01152

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