Rate Adaptation Mechanism with Available Data Rate Trimming and Data Rate Information Provision for V2I Communications
Joint Authors
Kashihara, Shigeru
Sahara, Takemi
Kaneda, Shigeru
Ohta, Chikara
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-04-15
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Telecommunications Engineering
Abstract EN
We study a rate adaptation mechanism for improving communication performance between a connected vehicle and a roadside unit (RSU) using Wi-Fi during movement in a vehicle-to-infrastructure (V2I) environment.
Wi-Fi communication provides various attractive services to connected vehicles during movement.
However, as a connected vehicle is generally moving at high speed, the communication performance with an RSU that works as an access point is degraded because wireless link quality fluctuates abruptly and continuously.
We then propose a rate adaptation mechanism employing the following two main features to mitigate such deterioration in communication performance: available data rate trimming and data rate information provision.
To alleviate degradation of communication, the former avoids usage of excessively low data rates and the latter then provides data rate information suitable for channel quality from a dataset of adequate data rates based on the vehicle’s location and speed.
However, the data rate information provided from a dataset may not always be appropriate because of various indefinite factors such as multipath fading and shadowing.
Thus, the proposed method also employs a measurement-based function to compensate for such a drawback of the dataset.
Simulation experiments evaluate communication performance for 10, 60, and 100 km/h in single-vehicle and multiple-vehicles cases.
Simulation results showed that the proposed method overall provides superior communication performance in situations involving more than one vehicle, in comparison with existing counter- and sample-based methods.
American Psychological Association (APA)
Kashihara, Shigeru& Sahara, Takemi& Kaneda, Shigeru& Ohta, Chikara. 2019. Rate Adaptation Mechanism with Available Data Rate Trimming and Data Rate Information Provision for V2I Communications. Mobile Information Systems،Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1193754
Modern Language Association (MLA)
Kashihara, Shigeru…[et al.]. Rate Adaptation Mechanism with Available Data Rate Trimming and Data Rate Information Provision for V2I Communications. Mobile Information Systems No. 2019 (2019), pp.1-9.
https://search.emarefa.net/detail/BIM-1193754
American Medical Association (AMA)
Kashihara, Shigeru& Sahara, Takemi& Kaneda, Shigeru& Ohta, Chikara. Rate Adaptation Mechanism with Available Data Rate Trimming and Data Rate Information Provision for V2I Communications. Mobile Information Systems. 2019. Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1193754
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1193754