A Fixed-Point Model for Semi-Persistent Scheduling of Vehicular Safety Messages

Xu Wang, Randall A Berry, Ivan Vukovic, Jayanthi Rao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In this paper, we focus on the performance analysis of a semi-persistent scheduling scheme for vehicular safety communications, motivated by the Mode 4 medium access control protocol in 3GPP Release 14 for Cellular-V2X. An analytical model is built and a fixed point method is used to calculate the collision probability and average delay in both fully connected and partially connected cases under the assumption of perfect PHY performance. We use Monte Carlo simulation to verify the results obtained in the analytical model. The simulation results show that our analytical model can give a good estimation of the collision probability and average delay. We verify that a trade-off between delay and collision probability can be achieved with a flexible resource block selection. Monte Carlo simulation results show that with the flexible resource selection scheme average delay can be shortened significantly with only a small compromise in collision probability.

Original languageEnglish (US)
Title of host publication2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538663585
DOIs
StatePublished - Jul 2 2018
Event88th IEEE Vehicular Technology Conference, VTC-Fall 2018 - Chicago, United States
Duration: Aug 27 2018Aug 30 2018

Publication series

NameIEEE Vehicular Technology Conference
Volume2018-August
ISSN (Print)1550-2252

Conference

Conference88th IEEE Vehicular Technology Conference, VTC-Fall 2018
CountryUnited States
CityChicago
Period8/27/188/30/18

Fingerprint

Collision
Safety
Fixed point
Scheduling
Analytical Model
Analytical models
Monte Carlo Simulation
Verify
Fixed Point Method
Resources
Medium Access Control
Medium access control
Model
Performance Analysis
Trade-offs
Calculate
Communication
Simulation
Monte Carlo simulation

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Wang, X., Berry, R. A., Vukovic, I., & Rao, J. (2018). A Fixed-Point Model for Semi-Persistent Scheduling of Vehicular Safety Messages. In 2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings [8690990] (IEEE Vehicular Technology Conference; Vol. 2018-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTCFall.2018.8690990
Wang, Xu ; Berry, Randall A ; Vukovic, Ivan ; Rao, Jayanthi. / A Fixed-Point Model for Semi-Persistent Scheduling of Vehicular Safety Messages. 2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. (IEEE Vehicular Technology Conference).
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abstract = "In this paper, we focus on the performance analysis of a semi-persistent scheduling scheme for vehicular safety communications, motivated by the Mode 4 medium access control protocol in 3GPP Release 14 for Cellular-V2X. An analytical model is built and a fixed point method is used to calculate the collision probability and average delay in both fully connected and partially connected cases under the assumption of perfect PHY performance. We use Monte Carlo simulation to verify the results obtained in the analytical model. The simulation results show that our analytical model can give a good estimation of the collision probability and average delay. We verify that a trade-off between delay and collision probability can be achieved with a flexible resource block selection. Monte Carlo simulation results show that with the flexible resource selection scheme average delay can be shortened significantly with only a small compromise in collision probability.",
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Wang, X, Berry, RA, Vukovic, I & Rao, J 2018, A Fixed-Point Model for Semi-Persistent Scheduling of Vehicular Safety Messages. in 2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings., 8690990, IEEE Vehicular Technology Conference, vol. 2018-August, Institute of Electrical and Electronics Engineers Inc., 88th IEEE Vehicular Technology Conference, VTC-Fall 2018, Chicago, United States, 8/27/18. https://doi.org/10.1109/VTCFall.2018.8690990

A Fixed-Point Model for Semi-Persistent Scheduling of Vehicular Safety Messages. / Wang, Xu; Berry, Randall A; Vukovic, Ivan; Rao, Jayanthi.

2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. 8690990 (IEEE Vehicular Technology Conference; Vol. 2018-August).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Wang X, Berry RA, Vukovic I, Rao J. A Fixed-Point Model for Semi-Persistent Scheduling of Vehicular Safety Messages. In 2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2018. 8690990. (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VTCFall.2018.8690990