论文标题
提高铁路走廊的蜂窝网络能效
Increasing Cellular Network Energy Efficiency for Railway Corridors
论文作者
论文摘要
现代火车在法拉第笼子里的行动使得为乘客提供高细胞数据能力的挑战。解决方案是沿铁路轨道的线性电池的部署，形成了蜂窝走廊。为了提供足够高的数据容量，需要在常规距离安装许多单元点。但是，由于基础设施功耗，因此在短距离间隔内具有高功率站点的细胞走廊是不可持续的。为了使铁路连接更加可持续，我们建议使用中级低功率支持中继器节点部署更少的高功率无线电单元。我们表明，这些中继器仅消耗常规单元点的5％的能量，并有助于维持火车中相同的数据能力。在另一个步骤中，我们为中继器节点引入了睡眠模式，该节点可以实现自动驱动，甚至可以简化安装，因为不需要电缆到继电器上。
Modern trains act as Faraday cages making it challenging to provide high cellular data capacities to passengers. A solution is the deployment of linear cells along railway tracks, forming a cellular corridor. To provide a sufficiently high data capacity, many cell sites need to be installed at regular distances. However, such cellular corridors with high power sites in short distance intervals are not sustainable due to the infrastructure power consumption. To render railway connectivity more sustainable, we propose to deploy fewer high-power radio units with intermediate low-power support repeater nodes. We show that these repeaters consume only 5 % of the energy of a regular cell site and help to maintain the same data capacity in the trains. In a further step, we introduce a sleep mode for the repeater nodes that enables autonomous solar powering and even eases installation because no cables to the relays are needed.
