Title :
A 3G-802.11p Based OLT-TDMA Mechanism for Cooperative Safety in a Dense Traffic Scenario
Author :
Wang, Ran ; Wang, Zi ; Chen, Zenghai ; Zhang, Lin
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Safety applications exploiting Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) based on Vehicular Ad hoc Networks (VANETs) have made great impact on research and development in ITS. The successful delivery of the periodical safety-related beacons is the key to security of the vehicular group. To better achieve this goal, the MAC protocol has to be highly reliable and has to assure certain fairness among vehicles. In this paper, an overload tolerant TDMA (OLT-TDMA) mechanism is proposed to ensure the fairness of channel access as well as a good Quality of Service (QoS). The simulation results show that the OLT-TDMA scheme outperforms the traditional IEEE 802.11p protocol, especially in very dense traffic scenario.
Keywords :
3G mobile communication; access protocols; cooperative communication; quality of service; safety; telecommunication security; telecommunication traffic; time division multiple access; vehicular ad hoc networks; wireless LAN; wireless channels; 3G-802.11p; IEEE 802.11p protocol; MAC protocol; OLT-TDMA scheme; QoS; V2I communication; V2V communication; VANET; Vehicle-to-Infrastructure communication; cooperative safety; dense traffic scenario; overload tolerant time division multiple access; quality of service; vehicle-to-vehicle communication; vehicular ad hoc networks; Delay; Load modeling; Safety; Telecommunication traffic; Time division multiple access; Vehicles;
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2011 IEEE 73rd
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-8332-7
DOI :
10.1109/VETECS.2011.5956608
