Predicting Networks Before They Happen: Experimentation on a Real-Time V2X Digital Twin
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866914474953277440 |
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| author | Pegurri, Roberto Shintaro, Habu Linsalata, Francesco Kui, Wang Yu, Tao Moro, Eugenio Igarashi, Maiya Capone, Antonio Sakaguchi, Kei |
| author_facet | Pegurri, Roberto Shintaro, Habu Linsalata, Francesco Kui, Wang Yu, Tao Moro, Eugenio Igarashi, Maiya Capone, Antonio Sakaguchi, Kei |
| contents | Emerging safety-critical Vehicle-to-Everything (V2X) applications require networks to proactively adapt to rapid environmental changes rather than merely reacting to them. While Network Digital Twins (NDTs) offer a pathway to such predictive capabilities, existing solutions typically struggle to reconcile high-fidelity physical modeling with strict real-time constraints. This paper presents a novel, end-to-end real-time V2X Digital Twin framework that integrates live mobility tracking with deterministic channel simulation. By coupling the Tokyo Mobility Digital Twin-which provides live sensing and trajectory forecasting-with VaN3Twin-a full-stack simulator with ray tracing-we enable the prediction of network performance before physical events occur. We validate this approach through an experimental proof-of-concept deployed in Tokyo, Japan, featuring connected vehicles operating on 60 GHz links. Our results demonstrate the system's ability to predict Received Signal Strength (RSSI) with a maximum average error of 1.01 dB and reliably forecast Line-of-Sight (LoS) transitions within a maximum average end-to-end system latency of 250 ms, depending on the ray tracing level of detail. Furthermore, we quantify the fundamental trade-offs between digital model fidelity, computational latency, and trajectory prediction horizons, proving that high-fidelity and predictive digital twins are feasible in real-world urban environments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_16559 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Predicting Networks Before They Happen: Experimentation on a Real-Time V2X Digital Twin Pegurri, Roberto Shintaro, Habu Linsalata, Francesco Kui, Wang Yu, Tao Moro, Eugenio Igarashi, Maiya Capone, Antonio Sakaguchi, Kei Networking and Internet Architecture Emerging safety-critical Vehicle-to-Everything (V2X) applications require networks to proactively adapt to rapid environmental changes rather than merely reacting to them. While Network Digital Twins (NDTs) offer a pathway to such predictive capabilities, existing solutions typically struggle to reconcile high-fidelity physical modeling with strict real-time constraints. This paper presents a novel, end-to-end real-time V2X Digital Twin framework that integrates live mobility tracking with deterministic channel simulation. By coupling the Tokyo Mobility Digital Twin-which provides live sensing and trajectory forecasting-with VaN3Twin-a full-stack simulator with ray tracing-we enable the prediction of network performance before physical events occur. We validate this approach through an experimental proof-of-concept deployed in Tokyo, Japan, featuring connected vehicles operating on 60 GHz links. Our results demonstrate the system's ability to predict Received Signal Strength (RSSI) with a maximum average error of 1.01 dB and reliably forecast Line-of-Sight (LoS) transitions within a maximum average end-to-end system latency of 250 ms, depending on the ray tracing level of detail. Furthermore, we quantify the fundamental trade-offs between digital model fidelity, computational latency, and trajectory prediction horizons, proving that high-fidelity and predictive digital twins are feasible in real-world urban environments. |
| title | Predicting Networks Before They Happen: Experimentation on a Real-Time V2X Digital Twin |
| topic | Networking and Internet Architecture |
| url | https://arxiv.org/abs/2601.16559 |