Abstract
Cellular vehicle-to-everything (C-V2X) networks are regarded as one of the main pillars to enable efficient and sustainable Intelligent Transportation Systems (ITS) safety applications and services. Such services rely on the concept of exchanging periodic status updates (i.e., basic safety messages (BSMs)) between nearby vehicular users (VUEs). Hence, it is essential to ensure small inter-packet gaps (IPGs) between successive BSMs from nearby VUEs. Large IPGs, due to successive packet losses, can result in stale information at a VUE. In this paper, we study the tail behavior of the IPG and the information age (IA) distributions using C-V2X transmission mode 4 (a decentralized resource allocation method based on semi-persistent scheduling (SPS)). Specifically, we investigate improvements and trade-offs introduced by the SAE-specified concept of one-shot transmissions. We use a high-fidelity system-level simulator that closely follows the SPS process of C-V2X transmission mode 4 to evaluate the performance of the interleaved one-shot SPS transmissions. Our numerical results show that the tails of the IA and IPG complementary cumulative distribution functions (CCDFs) are significantly improved when one-shot transmissions are enabled in various simulation scenarios.
Original language | English (US) |
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Title of host publication | 2021 IEEE Vehicular Networking Conference, VNC 2021 |
Editors | Frank Kargl, Onur Altintas, Christoph Sommer, Takamasa Higuchi, Florian Klingler |
Publisher | IEEE Computer Society |
Pages | 143-150 |
Number of pages | 8 |
ISBN (Electronic) | 9781665444507 |
DOIs | |
State | Published - 2021 |
Event | 13th IEEE Vehicular Networking Conference, VNC 2021 - Virtual, Online, Germany Duration: Nov 10 2021 → Nov 12 2021 |
Publication series
Name | IEEE Vehicular Networking Conference, VNC |
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Volume | 2021-November |
ISSN (Print) | 2157-9857 |
ISSN (Electronic) | 2157-9865 |
Conference
Conference | 13th IEEE Vehicular Networking Conference, VNC 2021 |
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Country/Territory | Germany |
City | Virtual, Online |
Period | 11/10/21 → 11/12/21 |
Funding
This project was supported in part by the Ford-Northwestern University Alliance.
Keywords
- 3GPP
- C-V2X
- SAE
- information age
- inter-packet gap
- one-shot transmissions
- semi-persistent scheduling
ASJC Scopus subject areas
- Computer Networks and Communications
- Automotive Engineering
- Control and Systems Engineering
- Electrical and Electronic Engineering
- Transportation