高空平台站（HAPS）：结构和系统性能
High Altitude Platform Stations (HAPS): Architecture and System Performance
摘要：
高空平台站（HAPS）具有为地面网络无法覆盖的大面积区域提供全球无线连接和数据服务的潜力，例如高速无线回程、工业物联网（IoT）和公共安全。统一的HAPS设计需要支持各种用例和广泛的需求。在本文中，我们提出了两种架构设计的HAPS系统：i）基于直放站的HAPS，和ii）基于基站的HAPS，这是两个可行的技术解决方案。利用能耗因子理论对两种体系结构的能效进行了分析和比较。这两种架构的系统性能通过蒙特卡罗模拟进行评估，其特征在于在单小区和多小区情况下使用LTE频带1的频谱效率的度量。两种设计都可以提供良好的下行链路频谱效率和覆盖，而上行链路覆盖受到UE发射功率和天线增益的显著限制。在UE处使用定向天线可以改善下行链路和上行链路的系统性能。
英文摘要：
High Altitude Platform Station (HAPS) has the potential to provide global wireless connectivity and data services such as high-speed wireless backhaul, industrial Internet of things (IoT), and public safety for large areas not served by terrestrial networks. A unified HAPS design is desired to support various use cases and a wide range of requirements. In this paper, we present two architecture designs of the HAPS system: i) repeater based HAPS, and ii) base station based HAPS, which are both viable technical solutions. The energy efficiency is analyzed and compared between the two architectures using consumption factor theory. The system performance of these two architectures is evaluated through Monte Carlo simulations and is characterized in metrics of spectral efficiency using LTE band 1 for both single-cell and multi-cell cases. Both designs can provide good downlink spectral efficiency and coverage, while the uplink coverage is significantly limited by UE transmit power and antenna gain. Using directional antennas at the UEs can improve the system performance for both downlink and uplink.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
