Title :
An Enhanced Multi-Channel MAC for the IEEE 1609.4 Based Vehicular Ad Hoc Networks
Author :
Wang, Qing ; Leng, Supeng ; Fu, Huirong ; Zhang, Yan ; Weerasinghe, Hesiri
Author_Institution :
Sch. of Commun. & Inf. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
This paper proposes a multi-channel MAC scheme for Vehicular Ad Hoc Networks (VANETs), which dynamically adjusts the intervals of Control Channel (CCH) and Service Channels (SCHs). Markov modeling is conducted to optimize the intervals based on the traffic condition. The scheme also introduces a multi-channel coordination mechanism to provide the contention-free access in SCHs. Theoretical analysis and simulation results show that the proposed scheme is able to help IEEE 1690.4 MAC improve the saturation throughput of SCHs significantly, while maintaining the prioritized transmission of critical safety information on the CCH.
Keywords :
IEEE standards; Markov processes; access protocols; ad hoc networks; mobile communication; IEEE 1609.4 based vehicular ad hoc networks; Markov modeling; contention-free access; control channel; enhanced multichannel MAC; multichannel coordination mechanism; service channel; traffic condition; Ad hoc networks; Bandwidth; Broadcasting; Communications Society; Computer science; Laboratories; Peer to peer computing; Throughput; USA Councils; Vehicle safety;
Conference_Titel :
INFOCOM IEEE Conference on Computer Communications Workshops , 2010
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-6739-6
Electronic_ISBN :
978-1-4244-6739-6
DOI :
10.1109/INFCOMW.2010.5466682
