论文标题
基于继电器的阻塞和天线未对准无线通信
Relay-Based Blockage and Antenna Misalignment Mitigation in THz Wireless Communications
论文作者
论文摘要
近年来无线设备的扩散导致了频谱短缺，这使科学界探索了使用Terahertz（THZ）通信的潜力。但是，THZ系统患有严重的路径衰减，阻塞和天线未对准。在本文中，我们提出了一种基于继电器的阻塞和天线未对准方法。更详细地，采用了两种继电器选择策略，即最佳和随机继电器选择。使用Monte Carlo模拟，根据平均吞吐量评估和比较了这两种策略下的系统性能和链接吞吐量低于服务质量（QoS）阈值的可能性。据观察，可以使用继电器来减轻阻塞和未对准的效果。此外，使用继电器减轻阻塞的增益更为重要。
The proliferation of wireless devices in recent years has caused a spectrum shortage, which led the scientific community to explore the potential of using terahertz (THz) communications. However, THz systems suffer from severe path attenuation, blockage, and antenna misalignment. In this paper, we present a relay-based blockage and antenna misalignment mitigation approach. In more detail, two relay selection policies are employed, namely best and random relay selection. The system performance under both policies is evaluated and compared in terms of average throughput and the probability that throughput of a link is below the quality of service (QoS) threshold, using Monte Carlo simulations. It was observed that the effect of both blockage and misalignment can be mitigated using relays. Moreover, the gain of using relaying to mitigate blockage is much more significant.
