Three-dimensional vehicular ad hoc network route selection method based on packet receiving probability

Abstract

The invention relates to the field of wireless communication, in particular to a three-dimensional vehicular ad hoc network route selection method based on packet receiving probability, which comprises the following steps: acquiring position information of a current vehicle and acquiring a neighbor vehicle set of the current vehicle by using a global positioning system; if a target vehicle existsin the neighbor vehicle set, directly performing forwarding; otherwise, constructing a packet acceptance probability model according to a SINR model, a link availability model and a buffer queue model, and converting a routing problem into a link reliability problem; solving a link reliability problem by adopting a particle swarm algorithm based on multi-objective decision, and selecting a link vehicle with the highest link reliability as a next relay vehicle. According to the method, the dynamics of the vehicle and the network characteristics of the three-dimensional Internet of Vehicles scene are considered jointly, the packet transmission rate and throughput of the routing process are improved, and the end-to-end delay is reduced.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a three-dimensional vehicle ad hoc network (VANET) routing selection method based on packet reception probability. Background technique [0002] Vehicle cooperative communication in intelligent transportation systems is used to exchange road conditions and vehicle information to improve the safety and efficiency of road traffic systems. Vehicular ad hoc network is a variant of mobile ad hoc network, which is the core component of intelligent transportation system. The superior performance of intelligent transportation systems is mainly attributed to the design of efficient routing methods in vehicular ad hoc networks. The high dynamics of vehicles, complex distribution of nodes, and path loss increase the probability of interruption of information routing, resulting in a sharp deterioration of network throughput and packet delivery rate. It is urgent to develop efficient ro...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem of link interruption caused by the high complexity of nodes in the 3D scene and serious path loss in the 3D vehicular ad hoc network, the present invention proposes a 3D vehicular ad hoc network routing selection method based on packet reception probability, such as figure 1 , including the following steps:

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