Literature Database Entry

mundry2018investigating


Loris Maximilian Mundry, "Investigating Medium Access Schemes for Vehicular Visible Light Communication," Bachelor Thesis, Department of Computer Science, Paderborn University, June 2018. (Advisors: Agon Memedi and Falko Dressler)

Abstract

The promising usage of Visible Light Communication (VLC) in the vehicular environment is caused by multiple factors. Recent research in Vehicular Visible Light Communication (V-VLC) showed that there is a need for Medium Access Control (MAC), since the number of collisions can reach a substantial level. The increased amount of collisions is limiting the number of sucessful transmissions and, therefore, causes a performance loss in throughput. Moreover, it has not been investigated how different medium access schemes are able to deal with the different properties of V-VLC. For example, the asymmetric radiation patterns of lighting modules, the directionality or the Line-Of-Sight (LOS) characteristic are distinct properties of V-VLC. By means of simulation, the ability of a MAC to decrease the perfor- mance loss is investigated. Hence, two Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) approaches and a Slotted Reservation Mechanism (SRM) are implemented and compared to ALOHA and slotted ALOHA. The implemented IEEE 802.15.7 random access algorithm making use of CSMA/CA is able to limit collisions by slightly reducing throughput. Whereas the busy tone scheme extending the CSMA/CA approach is able to improve the gains from the CSMA/CA mechanism in a highway scenario, it is not performing sufficient in a crossing scenario. Thus, the network topology can have a lot of influence on MAC performance. In general, the results show that it is possible to limit collisions while increasing the throughput.

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Loris Maximilian Mundry

BibTeX reference

@phdthesis{mundry2018investigating,
    author = {Mundry, Loris Maximilian},
    advisor = {Memedi, Agon and Dressler, Falko},
    title = {{Investigating Medium Access Schemes for Vehicular Visible Light Communication}},
    institution = {Department of Computer Science},
    year = {2018},
    month = {June},
    school = {Paderborn University},
    type = {Bachelor Thesis},
   }
   
   

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