# 基于朋友关系的车联网广告投递研究Research on Vehicle Network Advertising Delivery Based on Friends Relationship

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The rapid development of the Internet of Vehicles has also led to discussions and research on many application issues. This paper aims at the advertising delivery demand of shopping malls and proposes a vehicle networking routing algorithm based on the social relationship between vehicles, which mainly optimizes and improves the delivery rate and network energy consump-tion in the network of vehicles. First, the contact time and frequency between vehicles are used to establish and maintain a friend relationship between vehicles. Second, a vehicle node social distance table in each vehicle node is maintained. This can reduce the number of information ex-changes between vehicle nodes and reduce the overall network energy consumption. The data received by the vehicle node in the process is then recorded in a table maintained by it for the transmission of different links. When there is a friend node with a social distance of 1 in the node with which the vehicle node is in contact, the utility value between the available link and the data is calculated and forwarded. Finally, the packet is forwarded close to the target node until it reaches the destination node. The analysis of the experimental results shows that the number of auxiliary information exchanges is relatively reduced, and the overhead of the whole network can be reduced to achieve the expected goal while maintaining efficient delivery rate of data packets.

1. 引言

2. 相关研究背景及成果

3. 基于朋友关系的车联网广告投递

3.1. 节点间朋友关系识别

3.2. 节点间社会距离表

Figure 1. Vehicle node contact time distribution

1) 目标节点：即可以到达的节点的位置信息。

2) 社会距离：节点自身与目的节点之间的社会距离。

3) 直属节点：节点自身到目标节点这条链路中节点自身的下一跳节点。

3.3. 数据分组摘要表

Figure 2. Establishment and maintenance of vehicle relationships

Table 1. System resulting data of standard experiment

1) 数据条编号：从1开始编号方便调用。

2) 目标节点：所要发送到的目标节点位置信息和车辆信息。

3) 数据包信息：所要发送的数据包。

3.4. 免疫信息表

3.5. 传输效用计算

Table 2. Data group summary table

3.6. 具体操作步骤

4. 仿真实验及结果分析

4.1. 仿真环境

4.2. 性能对比参数

4.3. 仿真结果分析

Figure 3. Routing flow chart

Table 3. Simulation parameter table

Figure 4. Relationship between delivery rate and number of vehicle nodes

Figure 5. Auxiliary information exchange times

Figure 6. Routing cost

5. 结论

NOTES

*通讯作者。

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