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The First 5G-LTE Comparative Study in Extreme Mobility

Published: 28 February 2022 Publication History

Abstract

5G claims to support mobility up to 500 km/h according to the 3GPP standard. However, its field performance under high-speed scenes remains in mystery. In this paper, we conduct the first large-scale measurement campaign on a high-speed railway route operating at the maximum speed of 350 km/h, with full coverage of LTE and 5G (NSA and SA) along the track. Our study consumed 1788.8 GiB of cellular data in six months, covering the three major carriers in China and the recent standardized QUIC protocol. Based on our dataset, we reveal the key characteristics of 5G and LTE in extreme mobility in terms of throughput, RTT, loss rate, signal quality, and physical resource utilization. We further develop a taxonomy of handovers in both LTE and 5G and carry out the link-layer latency breakdown analysis. Our study pinpoints the deficiencies in the user equipment, radio access network, and core network which hinder seamless connectivity and better utilization of 5G's high bandwidth. Our findings highlight the directions of the next step in the 5G evolution.

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      cover image Proceedings of the ACM on Measurement and Analysis of Computing Systems
      Proceedings of the ACM on Measurement and Analysis of Computing Systems  Volume 6, Issue 1
      POMACS
      March 2022
      695 pages
      EISSN:2476-1249
      DOI:10.1145/3522731
      Issue’s Table of Contents
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Publication History

      Published: 28 February 2022
      Published in POMACS Volume 6, Issue 1

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      Author Tags

      1. 5g
      2. extreme mobility
      3. handover
      4. high-speed rail
      5. measurement

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      • National Key Research and Development Plan China

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      • (2024)Characterizing 5G Adoption and its Impact on Network Traffic and Mobile Service ConsumptionIEEE INFOCOM 2024 - IEEE Conference on Computer Communications10.1109/INFOCOM52122.2024.10621344(1531-1540)Online publication date: 20-May-2024
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