This paper analyzes the use of vehicular relays as a means to extend the Line-of-Sight (LOS) coverage from roadside units(RSUs) toward users on the streets in mmWave or visible light communications. In this paper, we consider the scenario where RSUs select vehicles within their LOS coverage as relays. As a result, the LOS coverage of those RSUs is extended by the LOS coverage newly provided by the vehicular relays. To account for the spatial relationship between vehicles and RSUs, we use Cox point processes. We assume that the LOS distances from RSUs or relays are independent and exponentially distributed. To address the spatial interactions between RSU LOS coverage and relay LOS coverage, we use the notion of mean area fraction to evaluate the LOS coverage.
翻译:本文分析车辆中继器的使用情况,以此将视线覆盖范围从路边单位扩大到街道上的用户,使用毫米Wave或可见光通信,本文中我们考虑了RSU选择其远线覆盖范围内的车辆作为中继器的情况,因此,通过车辆中继器新提供的远线覆盖扩大了这些路边继电器的覆盖范围。为了说明车辆和路标之间的空间关系,我们使用Cox点程序。我们假定,远线距离从路边单位或中继器的距离是独立和指数分布的。为了处理远线中继系统中继器覆盖和中继LOS覆盖之间的空间互动,我们使用平均区域部分的概念来评估远线覆盖范围。