论文标题
室内Terahertz的多连接性与自我和动态阻塞
Multi-Connectivity for Indoor Terahertz Communication with Self and Dynamic Blockage
论文作者
论文摘要
我们为连接概率和平均千古能力得出了新的表达方式，以评估室内超宽带Terahertz（THZ）通信系统中通过多连通性（MC）实现的性能。在此系统中，用户受自破坏和动态人体阻滞剂的影响。我们首先在该系统中建立了一个三维传播通道，以表征分子吸收损失的影响以及超宽带THZ通道的可用带宽性质。然后，我们针对两种MC策略进行了新的绩效分析：1）最接近的视线（LOS）接入点（AP）MC（C-MC）和2）反应性MC（R-MC）。通过数值结果，我们验证了我们的分析，并显示了两种MC策略在连接概率中取得的显着改善。我们进一步表明，C-MC和R-MC策略分别相对于单个连接策略提供了显着和边际容量的增益，并增加了与用户相关的AP的数量，对C-MC和R-MC策略实现的容量增益的影响完全不同。此外，我们澄清说，我们的分析使我们能够确定AP的最佳密度，以最大程度地提高容量增益。
We derive new expressions for the connection probability and the average ergodic capacity to evaluate the performance achieved by multi-connectivity (MC) in an indoor ultra-wideband terahertz (THz) communication system. In this system, the user is affected by both self-blockage and dynamic human blockers. We first build up a three-dimensional propagation channel in this system to characterize the impact of molecular absorption loss and the shrinking usable bandwidth nature of the ultra-wideband THz channel. We then carry out new performance analysis for two MC strategies: 1) Closest line-of-sight (LOS) access point (AP) MC (C-MC), and 2) Reactive MC (R- MC). With numerical results, we validate our analysis and show the considerable improvement achieved by both MC strategies in the connection probability. We further show that the C-MC and R-MC strategies provide significant and marginal capacity gain relative to the single connectivity strategy, respectively, and increasing the number of the users associated APs imposes completely different affects on the capacity gain achieved by the C-MC and R-MC strategies. Additionally, we clarify that our analysis allows us to determine the optimal density of APs in order to maximize the capacity gain.
