Adjacent Vehicle Number-Triggered Adaptive Transmission for V2V Communications

• Main Authors: Yiqiao Wei, Jingjun Chen, Seung-Hoon Hwang
• Format: Article
• Language: English
• Published: MDPI AG 2018-03-01
• Series: Sensors
• Subjects: vehicle communication; vehicle-to-vehicle communications; data transmission method; adaptive modulation scheme
• Online Access: http://www.mdpi.com/1424-8220/18/3/755

For vehicle-to-vehicle (V2V) communication, such issues as continuity and reliability still have to be solved. Specifically, it is necessary to consider a more scalable physical layer due to the high-speed mobility of vehicles and the complex channel environment. Adaptive transmission has been adapted in channel-dependent scheduling. However, it has been neglected with regards to the physical topology changes in the vehicle network. In this paper, we propose a physical topology-triggered adaptive transmission scheme which adjusts the data rate between vehicles according to the number of connectable vehicles nearby. Also, we investigate the performance of the proposed method using computer simulations and compare it with the conventional methods. The numerical results show that the proposed method can provide more continuous and reliable data transmission for V2V communications.