A Fog-Assisted TDMA MAC for Collision Avoidance in VCNs

被引：0

作者：

Liu B.-Y. ^{[1
]}

Qin J. ^{[1
]}

Xiong S.-W. ^{[1
]}

Deng D.-X. ^{[1
]}

Wu L.-B. ^{[2
]}

Cheng C.-Q. ^{[1
]}

机构：

[1] School of Computer Science and Technology, Wuhan University of Technology, Wuhan

[2] School of Cyber Science and Engineering•WHU, Wuhan University, Wuhan

来源：

Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2021年 / 49卷 / 05期

关键词：

Collision avoidance; Fog computing; ITS; MAC; TDMA;

D O I：

10.12263/DZXB.20201020

中图分类号：

学科分类号：

摘要：

The emergence and development of intelligent transportation system (ITS) put forward higher requirements for the medium access control (MAC) protocol of vehicle communication. The widely used carrier sense multiple access (CSMA) protocol based on channel competition has the problem of uncertain time delay. MAC protocol based on time division multiple access (TDMA) can effectively solve this problem. However, TDMA protocols cannot eliminate data transmission collisions. This paper propose a communication framework combining fog computing. And a centralized TDMA MAC protocol is proposed, which could predict upcoming data transmission collisions by taking advantage of the low-latency of fog computing. Then, time slots could be well scheduled to reduce data transmission collisions. Experimental simulation results show that this method effectively reduces data transmission collisions, and improves channel resource utilization. © 2021, Chinese Institute of Electronics. All right reserved.

引用

页码：843 / 850

页数：7

共 17 条

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