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Collision Avoidance Resource Allocation for LoRaWAN.

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Combining 5G New Radio, Wi-Fi, and LiFi for Industry 4.0: Performance Evaluation.

Jorge Navarro-Ortiz1,2, Juan J Ramos-Munoz1,2, Felix Delgado-Ferro1,2

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Summary

This study introduces a novel MultiPath TCP scheduler for 5G networks, enhancing mobile device performance by combining 5G, Wi-Fi, and LiFi. The scheduler optimizes traffic distribution, achieving 1.4 Gbps and improving reliability.

Keywords:
5GLiFiMPTCPWi-Fimulti-connectivityscheduling

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Area of Science:

  • Telecommunications Engineering
  • Computer Networking
  • Wireless Communication Systems

Background:

  • Fifth-generation mobile networks (5G) require diverse technologies like network softwarization, network slicing, and AI to support enhanced Mobile Broadband, Ultra-Reliable Low-Latency Communications, and massive Machine-Type Communications.
  • Multi-connectivity, utilizing multiple Wireless Access Technologies (WATs) simultaneously, is vital for improving mobile device throughput, reducing latency, and enhancing reliability.

Purpose of the Study:

  • To present and evaluate a multi-connectivity testbed developed within the 5G-CLARITY project.
  • To introduce and assess a novel MultiPath TCP (MPTCP) scheduler designed for optimized traffic distribution across diverse WATs.
  • To mitigate the Head-of-Line blocking problem in multi-connectivity scenarios.

Main Methods:

  • Development of a new MPTCP scheduler for enhanced traffic control and distribution across multiple WATs.
  • Implementation of a multi-connectivity testbed utilizing 5G New Radio (5GNR), Wi-Fi, and Light Fidelity (LiFi).
  • Performance evaluation in both static and dynamic scenarios using real equipment.

Main Results:

  • The proposed MPTCP scheduler effectively managed traffic distribution across 5GNR, Wi-Fi, and LiFi.
  • Aggregated throughput reached approximately 1.4 Gbps, surpassing other MPTCP schedulers.
  • Recovery times after interruptions, such as coverage loss, ranged from 400 to 500 ms.

Conclusions:

  • The novel MPTCP scheduler successfully leverages the combined capacities of complementary WATs, significantly boosting mobile network performance.
  • The developed testbed and scheduler provide a robust platform for evaluating and optimizing multi-connectivity solutions in 5G environments.
  • The findings demonstrate a practical approach to overcoming multi-connectivity challenges and achieving higher data rates and reliability.