Cluster switching method in vehicle-to-vehicle communication

Abstract

The invention discloses a cluster switching method for vehicle-to-vehicle communication, which introduces parameters such as a report threshold, an increase lag threshold, a replacement lag thresholdand the like for a V2V system, and performs cluster switching by calculating and comparing dynamic index values. The method can ensure the switching accuracy, effectively reduce the ping-pong effect and reduce the signaling overhead. Compared with a traditional method, positioning is not needed, and therefore the method can be applied to shielded scenes such as tunnels. Besides 4G and 5G systems of cellular communication, the design idea of the invention is also suitable for other Internet of Vehicles communication systems, such as a dedicated short-range communication (DSRC) system and the like.

Description

technical field [0001] The present invention proposes a cluster (Cluster) switching method suitable for vehicle-to-vehicle communication (V2V), which can ensure switching accuracy and reduce signaling overhead, and belongs to the field of signal processing in the Internet of Vehicles technology. Background technique [0002] With the rapid development of intelligent transportation and Internet of Vehicles, vehicle-to-vehicle communication technology has become a hot technology in the fifth generation mobile communication system (5G). However, due to the limited communication resources such as channels, as the number of vehicles increases, the mutual interference also increases rapidly, which makes resource scheduling more complicated. Therefore, in order to make full use of limited communication resources, it is a very effective method to manage vehicles by clustering (Cluster), that is, to use clustering to space-separate resources. Resources are reused to improve resource...

AI Technical Summary

Problems solved by technology

However, when the vehicle is moving at high speed, the signal strength changes greatly, and GPS positioning is usually inaccurate in places with occlusions

Therefore, the traditional method will lead to frequent switching of vehicles, resulting in a ping-pong effect like a ping-pong ball, which will increase the signaling overhead rapidly and affect the normal communication indicators to a certain extent.

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