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STMAC: Spatio-Temporal Coordination-Based MAC Protocol for Driving Safety in Urban Vehicular Networks

Title
STMAC: Spatio-Temporal Coordination-Based MAC Protocol for Driving Safety in Urban Vehicular Networks
Authors
Jeong, JaehoonShen, YiwenJeong, SangsooLee, SejunJeong, HwanseokOh, TaePark, TaejoonIlyas, Muhammad UsmanSon, Sang HyukDu, David H. C.
DGIST Authors
Jeong, Sangsoo; Son, Sang Hyuk
Issue Date
2017
Citation
IEEE Transactions on Intelligent Transportation Systems
Type
Article
Article Type
Article in Press
Keywords
Access ControlAccident PreventionCoordinationDirective AntennasInternet ProtocolsMac ProtocolMedium Access ControlPacket NetworksPower ControlRoads and StreetsSafetySpatio TemporalSpatio Temporal CoordinationSpatio Temporal FeaturesTraffic CongestionTransmission Power ControlVehicle to Infrastructure (V2I)Vehicle to Vehicle (V2V) CommunicationsVehiclesVehicular Networks
ISSN
1524-9050
Abstract
In this paper, we propose a spatio-temporal coordination-based media access control (STMAC) protocol for efficiently sharing driving safety information in urban vehicular networks. STMAC exploits a unique spatio-temporal feature characterized from a geometric relation among vehicles to form a line-of-collision graph, which shows the relationship among vehicles that may collide with each other. Based on this graph, we propose a contention-free channel access scheme to exchange safety messages simultaneously by employing directional antenna and transmission power control. Based on an urban road layout, we propose an optimized contention period schedule by considering the arrival rate of vehicles at an intersection in the communication range of a road-side unit to reduce vehicle registration time. Using theoretical analysis and extensive simulations, it is shown that STMAC outperforms legacy MAC protocols especially in a traffic congestion scenario. In the congestion case, STMAC can reduce the average superframe duration by 66.7%, packet end-to-end delay by 68.3%, and packet loss ratio by 88% in comparison with the existing MAC protocol for vehicle-to-infrastructure communication, based on the IEEE 802.11p. IEEE
URI
http://hdl.handle.net/20.500.11750/4550
DOI
10.1109/TITS.2017.2723946
Publisher
Institute of Electrical and Electronics Engineers Inc.
Related Researcher
  • Author Son, Sang Hyuk RTCPS(Real-Time Cyber-Physical Systems Research) Lab
  • Research Interests
Files:
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Collection:
ETC1. Journal Articles


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