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Reuse Distance-Aided Resource Selection Mechanisms for NR-V2X Sidelink Communication.

Jicheng Yin1, Seung-Hoon Hwang1

  • 1Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea.

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Cellular vehicle-to-everything (C-V2X) communication faces resource conflicts. A new reuse distance-aided resource selection (RD-RS) method mitigates these conflicts, improving packet reception ratio and reducing latency in vehicle networks.

Keywords:
Mode 2NR-V2XSB-SPScellular vehicle-to-everything (C-V2X)resource selectionsidelink

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Area of Science:

  • Telecommunications
  • Wireless Communication Systems
  • Vehicular Networks

Background:

  • Cellular vehicle-to-everything (C-V2X) utilizes sidelink for efficient vehicle communication.
  • New radio vehicle-to-everything (NR-V2X) Mode 2 employs sensing-based semi-persistent scheduling (SB-SPS) for automatic resource selection.
  • SB-SPS random resource selection can lead to conflicts and performance degradation.

Purpose of the Study:

  • To propose a novel resource selection method to mitigate resource conflicts in NR-V2X Mode 2.
  • To enhance communication performance and reduce latency in C-V2X networks.

Main Methods:

  • Introduced a reuse distance-aided resource selection (RD-RS) method.
  • Integrated reuse distance judgment into the SB-SPS algorithm before final resource selection.
  • Evaluated RD-RS performance against conventional algorithms through simulations.

Main Results:

  • The proposed RD-RS method significantly reduces resource conflicts and interference.
  • RD-RS achieves a higher packet reception ratio (PRR) compared to existing schemes.
  • The method effectively reduces the inter-packet gap (IPG) and improves communication range.

Conclusions:

  • RD-RS offers a superior approach to resource selection in NR-V2X Mode 2.
  • The method enhances C-V2X communication efficiency and reliability.
  • RD-RS demonstrates significant performance gains, particularly in challenging scenarios.