IAS aim to assist road users in avoiding collisions at intersections, either by warning the driver or by triggering automated actions. Such a system can be realized based on passive scanning only (e.g., using LiDAR) or supported by active IVC. The main reason to use IVC is its ability to provide situation awareness even when a possible crash candidate is not yet in visual range. The IVC research community has identified beaconing, i.e., one-hop broadcast, as the primary communication primitive for vehicular safety applications. Recently, adaptive beaconing approaches have been studied and different congestion control mechanisms have been proposed to cope with the diverse demands of vehicular networks. In this paper, we show that current state-of-the-art congestion control mechanisms are not able to support IAS adequately. Specifically, current approaches fail due to their inherent fairness postulation, i.e., they lack fine grained prioritization. We propose a solution that extends congestion control mechanisms by allowing temporary exceptions for vehicles in dangerous situations, that is, situation-based rate adaptation. We show the applicability for two state-of-the-art congestion control mechanisms, namely TRC and DynB, in two different vehicular environments, rural and downtown.

Enabling Situation Awareness at Intersections for IVC Congestion Control Mechanisms / Joerer, Stefan; Bloessl, Bastian; Segata, Michele; Sommer, Christoph; Lo Cigno, Renato; Jamalipour, Abbas; Dressler, Falko. - In: IEEE TRANSACTIONS ON MOBILE COMPUTING. - ISSN 1536-1233. - ELETTRONICO. - 15:7(2015), pp. 1674-1685. [10.1109/TMC.2015.2474370]

Enabling Situation Awareness at Intersections for IVC Congestion Control Mechanisms

Segata, Michele;Lo Cigno, Renato;
2015-01-01

Abstract

IAS aim to assist road users in avoiding collisions at intersections, either by warning the driver or by triggering automated actions. Such a system can be realized based on passive scanning only (e.g., using LiDAR) or supported by active IVC. The main reason to use IVC is its ability to provide situation awareness even when a possible crash candidate is not yet in visual range. The IVC research community has identified beaconing, i.e., one-hop broadcast, as the primary communication primitive for vehicular safety applications. Recently, adaptive beaconing approaches have been studied and different congestion control mechanisms have been proposed to cope with the diverse demands of vehicular networks. In this paper, we show that current state-of-the-art congestion control mechanisms are not able to support IAS adequately. Specifically, current approaches fail due to their inherent fairness postulation, i.e., they lack fine grained prioritization. We propose a solution that extends congestion control mechanisms by allowing temporary exceptions for vehicles in dangerous situations, that is, situation-based rate adaptation. We show the applicability for two state-of-the-art congestion control mechanisms, namely TRC and DynB, in two different vehicular environments, rural and downtown.
2015
7
Joerer, Stefan; Bloessl, Bastian; Segata, Michele; Sommer, Christoph; Lo Cigno, Renato; Jamalipour, Abbas; Dressler, Falko
Enabling Situation Awareness at Intersections for IVC Congestion Control Mechanisms / Joerer, Stefan; Bloessl, Bastian; Segata, Michele; Sommer, Christoph; Lo Cigno, Renato; Jamalipour, Abbas; Dressler, Falko. - In: IEEE TRANSACTIONS ON MOBILE COMPUTING. - ISSN 1536-1233. - ELETTRONICO. - 15:7(2015), pp. 1674-1685. [10.1109/TMC.2015.2474370]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/126555
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 31
  • ???jsp.display-item.citation.isi??? 23
social impact