Literature Database Entry

klingler2018efficient


Florian Klingler, "Efficient Wireless Communication in Vehicular Networks," PhD Thesis (Dissertation), Department of Computer Science, Paderborn University, September 2018. (Advisor: Falko Dressler; Referees: Jiannong Cao and Lars Wolf)

Abstract

Wireless communication among vehicles has been shown to be beneficial for a variety of use cases in the automotive domain ranging from pure safety to traffic efficiency and to entertainment applications. To accomplish communication, different protocol stacks have been standardized around the world, e.g., ETSI ITS-G5 in Europe and IEEE 1609 WAVE in the U.S., both building upon IEEE 802.11p WLAN, yet for many applications, efficiency is still a problem. We thus begin this PhD thesis with an analytical investigation of the capacity bounds of IEEE 802.11p. As a first contribution towards efficient wireless communication, we study the performance of IEEE 802.11p based unicast communication, which is, e.g., used by the ETSI ITS-G5 GeoNetworking specification. Our investigations reveal that unicast communication employing retransmissions at the MAC layer is not only not beneficial in vehicular communications, but maybe harmful in typical scenarios, as it leads to higher communication delays. Based on our findings and current limitations of ETSI ITS-G5, we present as a second contribution a purely broadcast based networking architecture, which categorizes communication demands of applications into four distinct classes. A central building block of our network layer is the support of 2-hop neighbor information using space efficient Bloom filters to provide nodes a better overview of their vicinity. In our third contribution, we take a detailed look on how to properly maintain this neighbor information and propose Bloom Hopping, a 2-hop message dissemination protocol, which operates independently from the road topology. Simulation results show that it can outperform traditional 2-hop approaches (not using Bloom filters) in terms of requiring less channel resources and providing better application performance. As a fourth contribution, we focus on the scalability of vehicular communication by taking advantage of multi-channel operation similar to what has been proposed in IEEE 1609.4 WAVE. In particular, we design a set of scheduling algorithms that answer the question when to send which information on which channel. Results reveal that our system has lower channel resource requirements and provides better application layer performance in comparison to single-channel protocols. As a summary, we believe the work presented in this PhD thesis brings vehicular communication forward in research and one step closer to the road.

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Florian Klingler

BibTeX reference

@phdthesis{klingler2018efficient,
    author = {Klingler, Florian},
    referee = {Cao, Jiannong and Wolf, Lars},
    advisor = {Dressler, Falko},
    title = {{Efficient Wireless Communication in Vehicular Networks}},
    institution = {Department of Computer Science},
    year = {2018},
    month = {September},
    location = {Paderborn, Germany},
    school = {Paderborn University},
    doi = {10.17619/UNIPB/1-389},
    type = {PhD Thesis (Dissertation)},
   }
   
   

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