NDLI: Mobility and QoS oriented 802.11p MAC scheme for vehicle-to-infrastructure communications

Content Provider	Springer Nature Link
Author	Zhang, Lin Liu, Yu Wang, Zi Guo, Jinjie Huo, Yiding
Copyright Year	2014
Abstract	Vehicles in Intelligent Transportation System (ITS) can communicate with other vehicles or roadside unit (RSU) within a specific area. In ITS, different services have different requirements of Quality of Service (QoS). For delay-tolerant services, such as FTP and Email, a longtime fairness should be guaranteed, which means vehicles with different speeds should have the same chance to communicate with RSU. While for real-time services, such as voice and video, a low average delay should be achieved. Based on original DCF scheme, much modification work has been done to achieve better QoS for mixed services, but fail to consider the unfairness problem brought by mobility. In this paper, we study the performance of 802.11p MAC scheme under high- speed mobility conditions and build a Mixed-Service-Mobility model to analyze the interaction among different services. By adjusting the minimum contention window size of 802.11p MAC scheme according to different speeds, we succeed in providing a balance between the longtime fairness of delay-tolerant services and the average delay of real-time services. The proposed analytical model is validated against simulation results to demonstrate its accuracy and effectiveness.
Starting Page	107
Ending Page	117
Page Count	11
File Format	PDF
ISSN	10184864
Journal	Telecommunication Systems
Volume Number	60
Issue Number	1
e-ISSN	15729451
Language	English
Publisher	Springer US
Publisher Date	2014-12-17
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Vehicular ad hoc networks (VANETs) 802.11p Fairness Delay IT in Business Computer Communication Networks Artificial Intelligence (incl. Robotics) Probability Theory and Stochastic Processes
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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