Paper Info
Title
Mobility based dynamic TXOP for vehicular communication
Abstract
Due to the mobile nature of nodes comprising the vehicular networks in addition to interference and congested network traffic, the design of an efficient MAC network becomes challenging. Moreover, the latency constraints underlying safety application add complexity to this design. The TXOP (Transmit Opportunity) mechanism defined in the IEEE 802.11e is optimized to meet the requirements of a Multimedia Network (voice and audio) but not a vehicular network thus making it unsuitable to be used in a VANet environment. On the other hand, existing MAC algorithms for VANets are designed to overcome some challenges overlooking others. Hence, the merit of this paper lies in developing a MAC mechanism that incorporates in an integrated manner various VANet's challenges while modifying the 802.11e TXOP to meet vehicular conditions. In this work, we propose MoByToP (Mobility Based Dynamic TXOP for VANets). MoByToP is an enhancement mechanism added to the MAC layer to extend the operation of the medium reservation phase. The uniqueness of MoByToP lies in designing a dynamic TXOP to incorporate mobility and QoS (Quality of Service) while considering the transmit data rate of the source vehicle. The proposed protocol was implemented in OMNET++4.1 and extensive experiments demonstrated that the proposed MAC with MoByToP mechanism ensures the reception of QoS messages much faster, more efficient and reliable than existing VANet MAC protocols.
Year
DOI
Venue
2012
10.1109/LCN.2012.6423651
Local Computer Networks
Keywords
Field
DocType
efficient mac network,vanet mac protocol,enhancement mechanism,proposed mac,mobytop mechanism,dynamic txop,mac mechanism,mac layer,vehicular communication,mac algorithm,vehicular network,quality of service
Reservation,Latency (engineering),Computer science,Computer network,Quality of service,Multimedia network,Vehicle dynamics,Data rate,Interference (wave propagation),Vehicular ad hoc network,Distributed computing
Conference
ISSN
ISBN
Citations 
0742-1303
978-1-4673-1565-4
2
PageRank 
References 
Authors
0.39
6
3
Name
Order
Citations
PageRank
Hikmat El Ajaltouni120.39
Azzedine Boukerche24301418.60
Richard W. Pazzi315916.95