Literature Database Entry


Stefan Joerer, Bastian Bloessl, Michele Segata, Christoph Sommer, Renato Lo Cigno and Falko Dressler, "Fairness Kills Safety: A Comparative Study for Intersection Assistance Applications," Proceedings of 25th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2014), Washington, D.C., September 2014, pp. 1442–1447.


We study the ability of Inter-Vehicle Communication (IVC) solutions to handle real-time requirements in safety scenarios using beaconing as a communication primitive. One of the envisioned safety applications is intersection assistance. The objective of such applications is to either warn the driver or even to act autonomously if other approaching vehicles endanger the vehicle. Fairness, combined with aggressive channel access for low-latency safety messages, has been one of the main research line according to which state of the art congestion control mechanisms have been developed. We show that these solutions are not able to sufficiently support intersection assistance applications. Specifically, we show that current approaches fail exactly due to their fairness postulation. We propose a new situation-aware solution to this fairness dilemma by allowing temporary exceptions for vehicles in dangerous situations. We show the applicability for two state of the art congestion control mechanisms, namely ETSI Transmit Rate Control (TRC) and Dynamic Beaconing (DynB). Our investigation also reveals important research objectives for future IVC protocols, namely how much reactivity and situation-awareness is needed in the highly dynamic environment of vehicular networks.

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Stefan Joerer
Bastian Bloessl
Michele Segata
Christoph Sommer
Renato Lo Cigno
Falko Dressler

BibTeX reference

    author = {Joerer, Stefan and Bloessl, Bastian and Segata, Michele and Sommer, Christoph and Lo Cigno, Renato and Dressler, Falko},
    doi = {10.1109/PIMRC.2014.7136395},
    title = {{Fairness Kills Safety: A Comparative Study for Intersection Assistance Applications}},
    pages = {1442--1447},
    publisher = {IEEE},
    address = {Washington, D.C.},
    booktitle = {25th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2014)},
    month = {9},
    year = {2014},

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