Zhexin Xu proposed a sophisticated adaptive multi-channel MAC protocol, to significantly improve the utilization and fairness of the slot allocation scheme needed for VANETs. The proposed protocol is based on the concept of SD-TDMA. The motivation is that collision users can participate again in the time slot allocation system as soon as possible after the start of the SCHI. Compared to existing methods, it is demonstrated that our approach can more efficiently and dynamically allocate time slots based on the sensing topology, while simultaneously reducing transmission collisions through a user sensing procedure. The simulation results were found to be in agreement with the mathematical derivations. In future work, other multiple access technologies will be used to improve spectrum utilization[8].Say no to plagiarism. Get Custom Essay on “Why Violent Video Games Should Not Be Banned”?Get the original essayXIAOPING YANG et al studied the redundancy in perimeter forwarding of GPSR, they proposed an MMGPSR routing protocol based on GPSR. In greedy transfer, they introduced the protocol allowed communication area and cumulative communication duration, perimeter transfer in case of greedy transfer failure, they introduced the minimum angle. By comparing the angles of neighboring nodes, the neighboring node with the minimum angle will be selected as the next hop in the time complexity analysis. Compared with GPSR, MM-GPSR does not add time complexity. Their proposed MM-GPSR has better performance than GPSR. [9] LAISEN NIE et al proposed consideration of spatio-temporal characteristics of the traffic matrix in anomaly detection, as well as CNN-based anomaly. Hierarchical convolution and downsampling layers deeply extract multi-fractal and low-rank features for the network. traffic estimation. Additionally, a threshold-based method is referenced in our approach for subsequent anomaly detection. By analyzing the proposed approach applying to a real network dataset, the simulated results state that the proposed method can identify anomalies in normal traffic flows exactly for VANETs[10]. Zhihao Ding proposed an improved routing protocol in VANETs by modifying the forwarding procedure of existing networks. GPSR routing protocol. The strong point of our proposed routing protocol is that we reduce delays and increase route reliability. They optimized the next hop selection strategy of the well-known GPSR routing protocol using mobility and MAC delay estimation. The method of our routing protocol is based on vehicle electronic devices which can provide a large amount of vehicle information. They added mobility information (speed and direction) and MAC delay estimation into the next-hop selection strategy to make the route more reliable and reduce the delay. Get a Custom Trial Kuldip Singh Atwal et al approved a delegation control functionality between a global controller in the clouds and local controllers on each OBU, this provides an opportunity for V to V, V to I communication, as well as hybrid communication. They implemented two applications demonstrating effective mobility management and QoS support of the proposal[12].