Title :
A cognitive MAC for VANET based on the WAVE systems
Author :
Chung, Seung-eun ; Yoo, Joon ; Kim, Chong-Kwon
Author_Institution :
Seoul Nat. Univ., Seoul
Abstract :
The recent advance in the intelligent transportation system (ITS) has led the FCC to allocate 7 channels at 5.9 GHz band for wireless access for vehicular environments (WAVE) systems. The key challenge of multi-channel access in vehicular ad-hoc networks (VANET) is to cope with the dynamic channel condition due to highly mobile nodes, while providing fair spectrum share among nodes. In this paper, we adhere to both these aspects by proposing a cognitive MAC protocol for VANET (CMV). Through both analysis and simulations, we show that CMV outperforms previous multi-channel MAC protocols by up to 72%.
Keywords :
access protocols; ad hoc networks; automated highways; cognitive radio; mobile radio; radio access networks; radio spectrum management; wireless channels; CMV protocol; VANET; WAVE system; cognitive MAC protocol; frequency 5.9 GHz; intelligent transportation system; multichannel access; spectrum sharing; vehicular ad-hoc network; wireless access-for-vehicular environment; Access protocols; Ad hoc networks; Analytical models; Communication system control; FCC; Intelligent transportation systems; Intelligent vehicles; Media Access Protocol; Safety; Vehicle dynamics; Cognitive MAC; Vehicular ad-hoc networks; Wireless Access for Vehicular Environments (WAVE);
Conference_Titel :
Advanced Communication Technology, 2009. ICACT 2009. 11th International Conference on
Conference_Location :
Phoenix Park
Print_ISBN :
978-89-5519-138-7
Electronic_ISBN :
1738-9445
