1,462 research outputs found
Ultrasonic-Based Environmental Perception for Mobile 5G-Oriented XR Applications
One of the sectors that is expected to significantly benefit from 5G network deployment is eXtended Reality (XR). Besides the very high bandwidth, reliability, and Quality of Service (QoS) to be delivered to end users, XR also requires accurate environmental perception for safety reasons: this is fundamental when a user, wearing XR equipment, is immersed in a “virtual” world, but moves in a “real” environment. To overcome this limitation (especially when using low-cost XR equipments, such as cardboards worn by the end user), it is possible to exploit the potentialities offered by Internet of Things (IoT) nodes with sensing/actuating capabilities. In this paper, we rely on ultrasonic sensor-based IoT systems to perceive the surrounding environment and to provide “side information” to XR systems, then performing a preliminary experimental characterization campaign with different ultrasonic IoT system configurations worn by the end user. The combination of the information flows associated with XR and IoT components is enabled by 5G technology. An illustrative experimental scenario, relative to a “Tourism 4.0” IoT-aided VR application deployed by Vodafone in Milan, Italy, is presented
Experimental Validation and Proof-of-concept of 5G Dense Small Cells Networks in Indoor Environments
DECT-2020 New Radio: The Next Step Towards 5G Massive Machine-Type Communications
Massive machine type communications (mMTC) is one of the cornerstone services
that have to be supported by 5G systems. 3GPP has already introduced LTE-M and
NB-IoT, often referred to as cellular IoT, in 3GPP Releases 13, 14, and 15 and
submitted these technologies as part of 3GPP IMT-2020 (i.e., 5G) technology
submission to ITU-R. Even though NB-IoT and LTE-M have shown to satisfy 5G mMTC
requirements defined by ITU-R, it is expected that these cellular IoT solutions
will not address all aspects of IoT and ongoing digitalization, including the
support for direct communication between "things" with flexible deployments,
different business models, as well as support for even higher node densities
and enhanced coverage. In this paper, we introduce the DECT-2020 standard
recently published by ETSI for mMTC communications. We evaluate its performance
and compare it to the existing LPWAN solutions showing that it outperforms
those in terms of supported density of nodes while still keeping delay and loss
guarantees at the required level.Comment: Author-Submitted Paper to IEEE Communications Magazine, 7 pages, 4
figures, 2 table
- …