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. 2023 May 19;23(10):4901.
doi: 10.3390/s23104901.

On the Impact of Multiple Access Interference in LTE-V2X and NR-V2X Sidelink Communications

Abdul Rehman  1 , Roberto Valentini  1 , Elena Cinque  1   2 , Piergiuseppe Di Marco  1 , Fortunato Santucci  1
Affiliations

On the Impact of Multiple Access Interference in LTE-V2X and NR-V2X Sidelink Communications

Abdul Rehman et al. Sensors (Basel). .

Abstract

Developing radio access technologies that enable reliable and low-latency vehicular communications have become of the utmost importance with the rise of interest in autonomous vehicles. The Third Generation Partnership Project (3GPP) has developed Vehicle to Everything (V2X) specifications based on the 5G New Radio Air Interface (NR-V2X) to support connected and automated driving use cases, with strict requirements to fulfill the constantly evolving vehicular applications, communication, and service demands of connected vehicles, such as ultra-low latency and ultra-high reliability. This paper presents an analytical model for evaluating the performance of NR-V2X communications, with particular reference to the sensing-based semi-persistent scheduling operation defined in the NR-V2X Mode 2, in comparison with legacy sidelink V2X over LTE, specified as LTE-V2X Mode 4. We consider a vehicle platooning scenario and evaluate the impact of multiple access interference on the packet success probability, by varying the available resources, the number of interfering vehicles, and their relative positions. The average packet success probability is determined analytically for LTE-V2X and NR-V2X, taking into account the different physical layer specifications, and the Moment Matching Approximation (MMA) is used to approximate the statistics of the signal-to-interference-plus-noise ratio (SINR) under the assumption of a Nakagami-lognormal composite channel model. The analytical approximation is validated against extensive Matlab simulations that a show good accuracy. The results confirm a boost in performance with NR-V2X against LTE-V2X, particularly for high inter-vehicle distance and a large number of vehicles, providing a concise yet accurate modeling rationale for planning and adaptation of the configuration and parameter setup of vehicle platoons, without having to resort to extensive computer simulation or experimental measurements.

Keywords: 3GPP; 5G NR-V2X; BLER; C-V2X; LTE-V2X; Mode 2; Mode 4; SINR; analytical model; multiple access interference; platooning; vehicular communications.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Considered vehicle platooning scenario.
Figure 2
Figure 2
Semi-persistent scheduling in cellular V2X.
Figure 3
Figure 3
Packet success probability as a function of the number of vehicles.
Figure 4
Figure 4
Packet success probability as a function of the number of vehicles.
Figure 5
Figure 5
Packet success probability as a function of the number of vehicles.
Figure 6
Figure 6
Packet success probability as a function of the number of resources.
Figure 7
Figure 7
Packet success probability as a function of the number of resources.
Figure 8
Figure 8
Packet success probability as a function of the number of resources.
Figure 9
Figure 9
Packet success probability as a function of distance.
Figure 10
Figure 10
Packet success probability as a function of distance.
Figure 11
Figure 11
Packet success probability as a function of distance.
See this image and copyright information in PMC

References

    1. Gyawali S., Xu S., Qian Y., Hu R.Q. Challenges and Solutions for Cellular Based V2X Communications. IEEE Commun. Surv. Tutor. 2021;23:222–255. doi: 10.1109/COMST.2020.3029723. - DOI
    1. Wang X., Mao S., Gong M. An Overview of 3GPP Cellular Vehicle-to-Everything Standards. Getmobile Mob. Comput. Commun. 2017;21:19–25. doi: 10.1145/3161587.3161593. - DOI
    1. Council of the European Union . Proposal for a Directive of the European Parliament and of the Council Amending Directive 2010/40/EU on the Framework for the Deployment of Intelligent Transport Systems in the Field of Road Transport and for Interfaces with Other Modes of Transport. Council of the European Union; Brussels, Belgium: 2022. 2021/0419(COD)
    1. European Commission . Final Report of the Single Platform for Open Road Testing and Pre-Deployment of Cooperative, Connected, Automated and Autonomous Mobility Platform (CCAM Platform) European Commission; Brussels, Belgium: 2021.
    1. NTIS Vehicle Safety Communications Project Task 3 Final Report: Identify Intelligent Vehicle Safety Applications Enabled by DSRC. [(accessed on 22 April 2023)];2015 Available online: https://rosap.ntl.bts.gov/view/dot/3925.

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