Title :
A near collision free reservation based MAC protocol for VANETs
Author :
Rui Zou ; Zishan Liu ; Lin Zhang ; Kamil, Muhammad
Author_Institution :
Key Lab. of Universal Wireless Commun., Minist. of Educ., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Compared with the CSMA based MAC protocols, the slotted reservation solutions could be more adaptable for VANETs. However, the high mobility and mobile hidden terminal (MHT) issues in vehicular environments cause a challenge of efficient and scalable slotted scheduling for TDMA MAC protocols. This paper proposes a novel near collision free reservation (CFR) MAC which is based on a recent VeMAC protocol to provide near collision free scheduling and address the mobile hidden terminal issue in VANETs. In former distributed TDMA MAC proposals like VeMAC, on the control channel of DSRC communication system, each vehicle randomly reserves dedicated time slots. However, the slot reservation of CFR MAC is more structural, based on the driving status and traffic flow of each vehicle. The performance of CFR MAC is verified via simulations and comparisons with IEEE 802.11p and VeMAC to demonstrate that superiority of CFR MAC.
Keywords :
carrier sense multiple access; scheduling; telecommunication terminals; telecommunication traffic; time division multiple access; vehicular ad hoc networks; CFR; CSMA based MAC protocols; DSRC communication system; IEEE 802.11p; MHT; VANETs; VeMAC protocol; collision free scheduling; control channel; distributed TDMA MAC protocols; mobile hidden terminal; near collision free reservation based MAC protocol; scalable slotted scheduling; slotted reservation solutions; time slots; traffic flow; vehicular environments; Delays; Media Access Protocol; Merging; Safety; Time division multiple access; Vehicles; MAC; Performance Evaluation; TDMA; VANET;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2014 IEEE
Conference_Location :
Istanbul
DOI :
10.1109/WCNC.2014.6952438
