LocDreamer: World Model-Based Learning for Joint Indoor Tracking and Anchor Scheduling

Fuente: arXiv
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Autori principali: Wang, Geng, Gu, Zhouyou, Li, Shenghong, Cheng, Peng, Park, Jihong, Vucetic, Branka, Li, Yonghui
Natura: Preprint
Pubblicazione: 2026
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author Wang, Geng
Gu, Zhouyou
Li, Shenghong
Cheng, Peng
Park, Jihong
Vucetic, Branka
Li, Yonghui
author_facet Wang, Geng
Gu, Zhouyou
Li, Shenghong
Cheng, Peng
Park, Jihong
Vucetic, Branka
Li, Yonghui
contents Accurate, resource-efficient localization and tracking enables numerous location-aware services in next-generation wireless networks. However, existing machine learning-based methods often require large labeled datasets while overlooking spectrum and energy efficiencies. To fill this gap, we propose LocDreamer, a world model (WM)-based framework for joint target tracking and scheduling of localization anchors. LocDreamer learns a WM that captures the latent representation of the target motion and localization environment, thereby generating synthetic measurements to imagine arbitrary anchor deployments. These measurements enable imagination-driven training of both the tracking model and the reinforcement learning (RL)-based anchor scheduler that activates only the most informative anchors, which significantly reduce energy and signaling costs while preserving high tracking accuracy. Experiments on a real-world indoor dataset demonstrate that LocDreamer substantially improves data efficiency and generalization, outperforming conventional Bayesian filter with random scheduling by 37% in tracking accuracy, and achieving 86% of the accuracy of same model trained directly on real data.
format Preprint
id arxiv_https___arxiv_org_abs_2602_08204
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle LocDreamer: World Model-Based Learning for Joint Indoor Tracking and Anchor Scheduling
Wang, Geng
Gu, Zhouyou
Li, Shenghong
Cheng, Peng
Park, Jihong
Vucetic, Branka
Li, Yonghui
Signal Processing
Accurate, resource-efficient localization and tracking enables numerous location-aware services in next-generation wireless networks. However, existing machine learning-based methods often require large labeled datasets while overlooking spectrum and energy efficiencies. To fill this gap, we propose LocDreamer, a world model (WM)-based framework for joint target tracking and scheduling of localization anchors. LocDreamer learns a WM that captures the latent representation of the target motion and localization environment, thereby generating synthetic measurements to imagine arbitrary anchor deployments. These measurements enable imagination-driven training of both the tracking model and the reinforcement learning (RL)-based anchor scheduler that activates only the most informative anchors, which significantly reduce energy and signaling costs while preserving high tracking accuracy. Experiments on a real-world indoor dataset demonstrate that LocDreamer substantially improves data efficiency and generalization, outperforming conventional Bayesian filter with random scheduling by 37% in tracking accuracy, and achieving 86% of the accuracy of same model trained directly on real data.
title LocDreamer: World Model-Based Learning for Joint Indoor Tracking and Anchor Scheduling
topic Signal Processing
url https://arxiv.org/abs/2602.08204