Motion Prediction Based TDMA Protocol in VANETs

• DOI: 10.3390/electronics9111792
• Publication Date: 2020-10-29T13:44:53Z
• Authors: Jinbin Hu; Wenjun Lyu; Shaohua Zhong; Jiawei Huang
• Keywords: VANET; MAC; 0203 mechanical engineering; TDMA; 02 engineering and technology; broadcast

In Vehicular Ad Hoc Networks (VANETs), the high mobility of vehicle nodes makes network topology change frequently, reducing forwarding efficiency MAC protocol. existing enhanced TDMA-based protocol, farthest node in current transmission range is chosen as to accelerate multi-hop transmission. However, we use probabilistic model show that there potentially exist better nodes, which could effectively improve efficiency. Therefore, propose a motion-prediction based TDMA predicts next frame select node. The test results highway and urban scenarios protocol reduces number hops decreases broadcast delay by 50% cover whole network.