複数LED送信機とイベントカメラを用いた車両可視光通信の実環境レイテンシ解析
Real-world Latency Analysis of Vehicular Visible Light Communication with Multiple LED Transmitters and an Event-Based Camera
イベントカメラをVLC受信機として用い、複数LEDからの同時受信と実車両環境でのエンドツーエンド遅延を評価し、協調認識要件を満たすことを示した論文。
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著者: Ryota Soga, Tsukasa Shimizu, Shintaro Shiba, Quan Kong, Shan Lu, Takaya Yamazato
分類: cs.RO
原文アブストラクト
Event cameras offer high temporal resolution, low latency, and wide dynamic range, making them promising receivers for visible light communication (VLC) in vehicle-to-everything (V2X) applications. This work presents an event-camera-based VLC system addressing three key challenges: bandwidth saturation, multi-transmitter reception, and latency characterization. We adopt a positive-event-only mode and design a protocol that suppresses event generation while maintaining communication distance and a wide field of view. We also propose a method to identify multiple transmitters and demonstrate simultaneous reception from up to three LEDs. Finally, we evaluate end-to-end latency in real vehicular scenarios and show that the system meets cooperative perception requirements. These results demonstrate that event-camera-based VLC is a feasible complement to existing V2X technologies (e.g., RF).
