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- Title
Performance Evaluation of IEEE 1609 WAVE for Vehicular Communications.
- Authors
Jyh-Horng Wen; Chien-Erh Weng
- Abstract
In IEEE 1609, it uses IEEE 802.11 Enhanced Distributed Channel Access (EDCA) mechanism to access the channel. IEEE 802.11 EDCA is a new wireless technology for wireless access in the vehicular environment (WAVE). It defines a new supplement to the existing IEEE 802.11 MAC protocol. In IEEE 802.11 EDCA, the aim is providing a QoS support. While the system serves different access categories (ACs), EDCA does not perform well under high load conditions. In order to improve the efficiency, we pay attention to the EDCA with transmit opportunity (TXOP) mechanism. We first proposed a Markov chain model and studied the behavior. We extend the model to support IEEE 802.11 EDCA and presented a more accurate analysis under nonideal channel environment. We also compared it with that without TXOP mechanism under channel error environment.
- Subjects
IEEE 802.11 (Standard); MOBILE communication systems; DISTRIBUTED computing; WIRELESS communications; QUALITY of service; ERROR analysis in mathematics
- Publication
International Journal of Vehicular Technology, 2013, p1
- ISSN
1687-5702
- Publication type
Article
- DOI
10.1155/2013/846016