本论文考虑的是郊区场景下，成本受限的路侧单元部署问题。在分析问题的过程中，引入了中心性的概念，并基于该概念，分别考虑了度中心性和中介中心性两种情况下的路侧单元部署问题。分析建模的过程中，考虑了匀速行驶的车辆在一跳的情况下的时间覆盖率问题。本论文通过仿真验证了两种中心性路侧单元部署方案的合理性，并且将仿真结果与随机路侧单元部署方案进行比较。仿真结果表明，在部署成本相同的情况下，度中心性部署的时间覆盖率比随机部署的时间覆盖率更好，中介中心性部署得时间覆盖率与随机部署得时间覆盖率差不多。
This paper studies the deployment of road side units with limited cost in suburban scenarios. We introduce the concept of centrality and analyze the deployment of RSUs in the case of Degree-Centricity and Betweeness-Centricity, respectively. In the process of analyzing and modeling, the time coverage of vehicles travelling at a uniform speed is considered. Simulation results verify the rationality of the two kinds of deployment scheme and show that the time coverage of Degree-centric deployment is better than that of random deployment, when the time coverage of Betweeness-centric deployment is similar to that of random deployment.
