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Title

C-V2X Centralized Resource Allocation with Spectrum Re-Partitioning in Highway Scenario

Authors

[ 1 ] Instytut Radiokomunikacji, Wydział Informatyki i Telekomunikacji, Politechnika Poznańska | [ D ] phd student | [ P ] employee

Scientific discipline (Law 2.0)

[2.3] Information and communication technology

Title variant

PL Scentralizowany rozdział zasobów w transmisji C-V2X z podziałem widma w scenariuszu transmisji na autostradzie

Year of publication

2022

Published in

Electronics

Journal year: 2022 | Journal volume: vol. 11 | Journal number: iss. 2

Article type

scientific article

Publication language

english

Keywords
EN
  • C-V2X
  • connected vehicles
  • full frequency reuse distance
  • partial frequency reuse distance
  • resource allocation
  • vehicular communication
Abstract

EN Cellular Vehicle-to-Everything communication is an important scenario of 5G technologies. Modes 3 and 4 of the wireless systems introduced in Release 14 of 3GPP standards are intended to support vehicular communication with and without cellular infrastructure. In the case of Mode 3, dynamic resource selection and semi-persistent resource scheduling algorithms result in a signalling cost problem between vehicles and infrastructure, therefore, we propose a means to decrease it. This paper employs Re-selection Counter in centralized resource allocation as a decremental counter of new resource requests. Furthermore, two new spectrum re-partitioning and frequency reuse techniques in Roadside Units (RSUs) are considered to avoid resource collisions and diminish high interference impact via increasing the frequency reuse distance. The two techniques, full and partial frequency reuse, partition the bandwidth into two sub-bands. Two adjacent RSUs apply these sub-bands with the Full Frequency Reuse (FFR) technique. In the Partial Frequency Reuse (PFR) technique, the sub-bands are further re-partitioned among vehicles located in the central and edge parts of the RSU coverage. The sub-bands assignment in the nearest RSUs using the same sub-bands is inverted concerning the current RSU to increase the frequency reuse distance. The PFR technique shows promising results compared with the FFR technique. Both techniques are compared with the single band system for different vehicle densities.

Pages (from - to)

279-1 - 279-20

DOI

10.3390/electronics11020279

URL

https://www.mdpi.com/2079-9292/11/2/279/pdf

Comments

article number: 279

License type

CC BY (attribution alone)

Open Access Mode

open journal

Open Access Text Version

final published version

Date of Open Access to the publication

0 months after publication

Full text of article

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Access level to full text

public

Points of MNiSW / journal

100.0

Impact Factor

2.397 [List 2020]

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