Performance Evaluation and Optimization of Communication Infrastructure for the Next Generation Air Transportation System
Performance Evaluation and Optimization of Communication Infrastructure for the Next Generation Air Transportation System
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DOI：
10.1109/tpds.2014.2317720
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发表时间：
2015-04
影响因子：
5.3
通讯作者：
Pan-Gyong Park;C. Tomlin
中科院分区：
文献类型：
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作者：
Pan-Gyong Park;C. Tomlin
广播式自动相关监视（ADS-B）是提高国家空域系统安全性、容量和效率的基本监视技术之一。ADS-B与使用相同1，090 MHz频段的当前雷达系统共享其频段。雷达系统和ADS-B系统的共存是下一代航空运输系统（NextGen）中发现和解决冲突的关键问题。本文主要研究ADS-B系统与现有雷达系统的性能评估和ADS-B系统的性能优化，以提高下一代雷达系统中冲突检测和解决的安全性和效率。我们已经开发了一个仿真环境，该环境模拟了空中交通负荷、雷达系统、ADS-B系统和无线信道之间的复杂相互作用。一个简单的模型是用来推导出的ADS-B的性能指标的解析表达式。然后，该模型被用来设计一个自适应ADS-B协议，以最大限度地提高信息覆盖率，同时保证可靠和及时的通信在空中交通监视网络。仿真结果表明，ADS-B干扰对现有雷达系统的影响可以忽略不计。ADS-B的业务能力满足空中交通管制中冲突检测和解决的性能要求。然而，由于当前的雷达可能会显著降低ADS-B性能，因此需要对当前的雷达系统进行升级，以便在ADS-B环境中运行。数值结果表明，所提出的自适应协议有可能提高空中交通管制中的冲突检测和解决的性能。
Automatic dependent surveillance-broadcast (ADS-B) is one of the fundamental surveillance technologies to improve the safety, capacity, and efficiency of the national airspace system. ADS-B shares its frequency band with current radar systems that use the same 1,090 MHz band. The coexistence of radar systems and ADS-B systems is a key issue to detect and resolve conflicts in the next generation air transportation system (NextGen). This paper focuses on the performance evaluation of ADS-B with existing radar systems and performance optimization of ADS-B systems to improve the safety and efficiency of conflict detection and resolution in NextGen. We have developed a simulation environment which models the complex interplay among the air traffic load, the radar systems, the ADS-B systems, and the wireless channel. A simple model is used to derive an analytical expression for a performance metric of ADS-B. This model is then used to design an adaptive ADS-B protocol for maximizing the information coverage while guaranteeing reliable and timely communication in air traffic surveillance networks. Simulation results show that the effect of ADS-B interference on the current radar system is negligible. The operational ability of ADS-B meets the performance requirements of conflict detection and resolution in air traffic control. However, upgrades are required in the current radar system for operation within an ADS-B environment since the current radars can significantly degrade the ADS-B performance. Numerical results indicate that the proposed adaptive protocol has the potential to improve the performance of conflict detection and resolution in air traffic control.