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Dice the TX Power - Improving Awareness Quality in VANETs by Random Transmit Power Selection

Kloiber, Bernhard and Härri, Jerome and Strang, Thomas (2012) Dice the TX Power - Improving Awareness Quality in VANETs by Random Transmit Power Selection. IEEE Vehicular Networking Conference 2012, 2012-11-14 - 2012-11-16, Seoul, Republic of Korea. doi: 10.1109/VNC.2012.6407445.



Future safety-related vehicular applications require reliable information exchange provided by cooperative Vehicular Ad-hoc NETworks (VANETs). Although the vehicular WLAN standard IEEE 802.11p has been adapted to the challenging vehicular environment, it has not been adapted to the stringent communication requirements imposed by vehicular applications. In particular, broadcast transmissions are mostly periodic and initiated at common TX powers. This makes potential interferences recurring instead of spurious and lowers the performance of medium access for vehicular applications. In this paper, we propose to leverage recurring interferences by randomly selecting each TX power following a given probability distribution. Such randomization reduces the chances of recurring interferences, and the probability distribution provides control to the applications regarding the required Awareness Quality, in particular by providing a higher Awareness Quality at close range. This concept also reduces congestions by transmitting less at high distances. It is transparent to the applications, and manages to improve the Awareness Quality in a dense highway by a factor 2 to 20, yet at a factor 2 to 3 lower channel load.

Item URL in elib:https://elib.dlr.de/77791/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Dice the TX Power - Improving Awareness Quality in VANETs by Random Transmit Power Selection
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Strang, ThomasUNSPECIFIEDhttps://orcid.org/0009-0000-1313-4751UNSPECIFIED
Date:November 2012
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Random TX power, Awareness Quality, Update Delay,
Event Title:IEEE Vehicular Networking Conference 2012
Event Location:Seoul, Republic of Korea
Event Type:international Conference
Event Start Date:14 November 2012
Event End Date:16 November 2012
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Fahrerassistenz (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Communications Systems
Deposited By: Kloiber, Bernhard
Deposited On:22 Nov 2012 12:03
Last Modified:24 Apr 2024 19:44

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