论文标题
空间多路复用对超密集MMWave AP网络吞吐量的影响
Impact of Spatial Multiplexing on the Throughput of Ultra-Dense mmWave AP Networks
论文作者
论文摘要
由于频带的高路径损失和阻塞问题，单个毫米波（MMWave）接入点（AP）的工作范围很小。为了实现类似于常规的Sub-6GHz网络的覆盖范围，MMWave网络需要AP的超密集部署。通常，可以将MMWAVE AP分类为与返回相互连接的AP和中继APS。尽管可以通过毒点过程（PPP）捕获回程连接的AP的空间分布，但中继AP的所需位置取决于MMWave网络中运行的传输协议。在本文中，我们考虑通过合并MultiHop协议来建模MMWave AP网络的拓扑。我们首先得出了AP网络的拓扑结构，每次传输跃点禁用了空间多路复用。然后，当在MMWave AP启用空间多路复用时，我们分析拓扑。为了得出网络吞吐量，我们首先量化了延迟的改善和覆盖概率的降解，并随着MMWave AP处的空间多路复用增益的增加而量化。然后，我们显示了空间多路复用对超密集MMWave AP网络吞吐量的影响。
The operating range of a single millimeter wave (mmWave) access point (AP) is small due to the high path loss and blockage issues of the frequency band. To achieve the coverage similar to conventional sub-6GHz networks, the ultra-dense deployments of APs are required by the mmWave network. In general, the mmWave APs can be categorized into backhaul-connected APs and relay APs. Though the spatial distribution of backhaul-connected APs can be captured by the Poison point process (PPP), the desired locations of relay APs depend on the transmission protocol operated in the mmWave network. In this paper, we consider modeling the topology of mmWave AP network by incorporating the multihop protocol. We first derive the topology of AP network with the spatial multiplexing disabled for each transmission hop. Then we analyze the topology when the spatial multiplexing is enabled at the mmWave APs. To derive the network throughput, we first quantify the improvement in latency and the degradation of coverage probability with the increase of spatial multiplexing gain at mmWave APs. Then we show the impact of spatial multiplexing on the throughput for the ultra-dense mmWave AP network.
