Print Email Facebook Twitter ViTaLS -A Novel Link-Layer Scheduling Framework for Tactile Internet over Wi-Fi Title ViTaLS -A Novel Link-Layer Scheduling Framework for Tactile Internet over Wi-Fi Author Gokhale, V. (TU Delft Embedded Systems) Kroep, H.J.C. (TU Delft Embedded Systems) Venkatesha Prasad, Ranga Rao (TU Delft Embedded Systems) Bellalta, Boris (Pompeu Fabra University) Dressler, Falko (Technical University of Berlin) Date 2023 Abstract The pioneering field of tactile Internet (TI) will enable the transfer of human skills over long distances through haptic feedback. Realizing this demands a roundtrip latency of sub-5 ms. In this work, we investigate the capability of Wi-Fi 6 and existing TI scheduling/multiplexing schemes in meeting this stringent latency constraint. Taking the concrete example of the state-of-the-art video-haptic multiplexer (VH-multiplexer), we highlight the pitfalls of relying on the existing Wi-Fi 6 systems for TI communication. To circumvent this, we propose video-tactile latency scheduler (ViTaLS) - a novel link layer framework for tuning the video-tactile frame transmissions to suit their heterogeneous Quality of Service requirements. We present a mathematical model to characterize the packet transmission duration of ViTaLS. Using a custom simulator, we validate our model and measure the objective performance improvement of ViTaLS over VH-multiplexer. We also present ViTaLS-optimal - a variant of ViTaLS, for further 4 reducing the tactile latency. Objectively, we show that ViTaLS-optimal yields a latency improvement of up to 82 %. Based on experiments conducted on a real TI testbed, we subjectively demonstrate that ViTaLS-optimal outperforms the VH-multiplexer. Subject Tactile InternetWi-Fi 6802.11axViTaLSultra-low latency To reference this document use: http://resolver.tudelft.nl/uuid:555c15cb-7adc-436b-9bb6-e6ec2157a9ed DOI https://doi.org/10.1109/JIOT.2023.3235433 Embargo date 2023-07-01 ISSN 2327-4662 Source IEEE Internet of Things Journal, 10 (11), 9917-9927 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2023 V. Gokhale, H.J.C. Kroep, Ranga Rao Venkatesha Prasad, Boris Bellalta, Falko Dressler Files PDF ViTaLSA_Novel_Link_Layer_ ... _Wi_Fi.pdf 1.78 MB Close viewer /islandora/object/uuid:555c15cb-7adc-436b-9bb6-e6ec2157a9ed/datastream/OBJ/view