Title
CADMA: collision-avoidance directional medium access for vehicular ad hoc networks
Abstract
Quick and accurate message transmission is an important research topic for vehicular ad hoc networks (VANET). Most studies assume that the periodic broadcast of beacon frames between vehicles increases the safety of the driver. In particular, there has been a lot of research into broadcasting based on carrier sense multiple access with collision avoidance (CSMA/CA) algorithms for medium access. However, the CSMA/CA algorithm is not an optimum technique for the VANET system, due to the transfer delay that occurs in inducing frequent collisions on transmission signals. In this paper, we propose a collision-avoidance directional medium access (CADMA) protocol and infrastructure-utilized clustering method for VANET to support reliable data transfer. In the proposed scheme, the CADMA protocol uses non-competitive transmission methods and cluster heads (CHs) to manage access by allocating the nodes resources. In addition, the roadside unit (RSU) helps with the clustering process. The simulation results indicate that the CADMA can reduce transmission delays and the collision rate of the broadcasting signal, and have shown that the CADMA can be effectively utilized for the VANET systems.
Year
DOI
Venue
2016
10.1007/s11276-015-1026-9
Wireless Networks
Keywords
Field
DocType
VANET,Directional antenna,Polling-based MAC,Directional MAC,Clustering,V2V,DSRC
Broadcasting,Data transmission,Computer science,Computer network,Collision,Wireless ad hoc network,Cluster analysis,Carrier sense multiple access with collision avoidance,Vehicular ad hoc network,Dedicated short-range communications
Journal
Volume
Issue
ISSN
22
4
1022-0038
Citations 
PageRank 
References 
1
0.37
25
Authors
3
Name
Order
Citations
PageRank
Soonbae Ji111.05
junghyun kim210.37
Cheolwoo You315737.11