Improving Information Age in SAE J2945 Congestion-Controlled Beaconing

Sungheon Lim; Hyogon Kim

doi:10.1109/LCOMM.2018.2889666

Improving Information Age in SAE J2945 Congestion-Controlled Beaconing

Sungheon Lim, Hyogon Kim

Department of Computer Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The Society of Automotive Engineers (SAE) J2945 standard prescribes a wireless channel congestion control algorithm for Basic Safety Messages (BSMs) in vehicular safety communication. The algorithm utilizes transmit (Tx) power and rate controls, but we find that the Tx power control hardly engages in most practical vehicular traffic densities. We explain the cause, and propose an alternative way to utilize both control mechanisms. Specifically, we suggest that the Tx power control be first exerted to its limit, followed by the Tx rate control coping with further congestion. We show that the proposed alternative not only addresses the inadequate power control issue, but also leads to better information age performance for vehicles in the most safety-critical distances.

Original language	English
Journal	IEEE Communications Letters
DOIs	https://doi.org/10.1109/LCOMM.2018.2889666
Publication status	Accepted/In press - 2018 Jan 1

Keywords

BSM
congestion control
Heuristic algorithms
information age
Kinematics
Meters
Power control
SAE J2945
Safety
Schedules
Standards
Tx power control

ASJC Scopus subject areas

Modelling and Simulation
Computer Science Applications
Electrical and Electronic Engineering

Access to Document

10.1109/LCOMM.2018.2889666

Fingerprint Dive into the research topics of 'Improving Information Age in SAE J2945 Congestion-Controlled Beaconing'. Together they form a unique fingerprint.

Cite this

@article{4ce8a8c89f2548cd9204dee76bb48ff0,

title = "Improving Information Age in SAE J2945 Congestion-Controlled Beaconing",

abstract = "The Society of Automotive Engineers (SAE) J2945 standard prescribes a wireless channel congestion control algorithm for Basic Safety Messages (BSMs) in vehicular safety communication. The algorithm utilizes transmit (Tx) power and rate controls, but we find that the Tx power control hardly engages in most practical vehicular traffic densities. We explain the cause, and propose an alternative way to utilize both control mechanisms. Specifically, we suggest that the Tx power control be first exerted to its limit, followed by the Tx rate control coping with further congestion. We show that the proposed alternative not only addresses the inadequate power control issue, but also leads to better information age performance for vehicles in the most safety-critical distances.",

keywords = "BSM, congestion control, Heuristic algorithms, information age, Kinematics, Meters, Power control, SAE J2945, Safety, Schedules, Standards, Tx power control",

author = "Sungheon Lim and Hyogon Kim",

year = "2018",

month = jan,

day = "1",

doi = "10.1109/LCOMM.2018.2889666",

language = "English",

journal = "IEEE Communications Letters",

issn = "1089-7798",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - JOUR

T1 - Improving Information Age in SAE J2945 Congestion-Controlled Beaconing

AU - Lim, Sungheon

AU - Kim, Hyogon

PY - 2018/1/1

Y1 - 2018/1/1

N2 - The Society of Automotive Engineers (SAE) J2945 standard prescribes a wireless channel congestion control algorithm for Basic Safety Messages (BSMs) in vehicular safety communication. The algorithm utilizes transmit (Tx) power and rate controls, but we find that the Tx power control hardly engages in most practical vehicular traffic densities. We explain the cause, and propose an alternative way to utilize both control mechanisms. Specifically, we suggest that the Tx power control be first exerted to its limit, followed by the Tx rate control coping with further congestion. We show that the proposed alternative not only addresses the inadequate power control issue, but also leads to better information age performance for vehicles in the most safety-critical distances.

AB - The Society of Automotive Engineers (SAE) J2945 standard prescribes a wireless channel congestion control algorithm for Basic Safety Messages (BSMs) in vehicular safety communication. The algorithm utilizes transmit (Tx) power and rate controls, but we find that the Tx power control hardly engages in most practical vehicular traffic densities. We explain the cause, and propose an alternative way to utilize both control mechanisms. Specifically, we suggest that the Tx power control be first exerted to its limit, followed by the Tx rate control coping with further congestion. We show that the proposed alternative not only addresses the inadequate power control issue, but also leads to better information age performance for vehicles in the most safety-critical distances.

KW - BSM

KW - congestion control

KW - Heuristic algorithms

KW - information age

KW - Kinematics

KW - Meters

KW - Power control

KW - SAE J2945

KW - Safety

KW - Schedules

KW - Standards

KW - Tx power control

UR - http://www.scopus.com/inward/record.url?scp=85059274279&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85059274279&partnerID=8YFLogxK

U2 - 10.1109/LCOMM.2018.2889666

DO - 10.1109/LCOMM.2018.2889666

M3 - Article

AN - SCOPUS:85059274279

JO - IEEE Communications Letters

JF - IEEE Communications Letters

SN - 1089-7798

ER -

Improving Information Age in SAE J2945 Congestion-Controlled Beaconing

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Cite this