Research Article
A-ADHOC: an Adaptive Real-time Distributed MAC Protocol for Vehicular Ad Hoc Networks
@INPROCEEDINGS{10.1109/CHINACOM.2009.5339734, author={Limin Miao and Fengyuan Ren and Chuang Lin and Anan Luo}, title={A-ADHOC: an Adaptive Real-time Distributed MAC Protocol for Vehicular Ad Hoc Networks}, proceedings={ChinaCom2009-Frontiers on Communications and Networking Symposium}, publisher={IEEE}, proceedings_a={CHINACOM2009-FCN}, year={2009}, month={11}, keywords={VANET MAC Protocol TDMA Adaptive Frame Length}, doi={10.1109/CHINACOM.2009.5339734} }- Limin Miao
Fengyuan Ren
Chuang Lin
Anan Luo
Year: 2009
A-ADHOC: an Adaptive Real-time Distributed MAC Protocol for Vehicular Ad Hoc Networks
CHINACOM2009-FCN
IEEE
DOI: 10.1109/CHINACOM.2009.5339734
Abstract
Vehicular Ad Hoc Networks (VANET) is the foundation of Intelligent Traffic System (ITS), and recently many MAC protocols for VANET are proposed, among which a reliable MAC protocol called ADHOC has aroused much attention. By investigating the details of ADHOC protocol, we have discovered several unsolved problems that might lead to a network failure. In this paper, we provide a quantitative analysis of the success probability for contending nodes and prove that an adaptive frame length is quite necessary. We propose Adaptive-ADHOC (A-ADHOC) MAC protocol, which implements a robust mechanism supporting the adaptive frame length. Evaluation result shows that A-ADHOC can maintain a high contending success probability and obtain about 50% reduction of response time over original ADHOC protocol, while providing important enhancement on network robustness.