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首页> 外文会议>9th Annual Conference on Communication Networks and Services Research >Performance of a Frequency-Hopped Real-Time Remote Control System in a Multiple Access Scenario
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Performance of a Frequency-Hopped Real-Time Remote Control System in a Multiple Access Scenario

机译：多址情况下跳频实时远程控制系统的性能

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摘要

The ubiquitous presence of powerful low-power wireless systems on chip (SoC) able to operate in the Industrial, Scientific and Medical (ISM) band has brought a new enhanced operational choice for real-time Radio Control (RC) applications such as aircrafts and cars in the hobby grade category. Frequency Hopping Spread Spectrum (FHSS) has become the dominant transmission technique for the previously mentioned hardware platform. Even though, FHSS provides for resilience to noise and interference, partial-band type of interference could be specially harmful with regards to the overall system performance. This is critical in real-time RC applications as it could increase system latency. The present paper characterizes the performance of a single real-time RC application, which operates in a realistic multi-user ISM environment by means of two main metrics: System Lag Occurrence Probability (SLOP) and Probability of Losing a Packet (PoLP). Both Synchronous FHSS Multiple Access (SFHSS-MA) and Asynchronous FHSS Multiple Access (AFHSSMA) environments have been modeled. Simulation results show the level of impact on system performance of key engineering parameters such as clock drift, number of co-located users, and variable data packet duty cycle.
机译：能够在工业，科学和医学（ISM）频段中运行的功能强大的低功耗无线片上系统（SoC）的普遍存在，为飞机和飞机等实时无线电控制（RC）应用带来了新的增强型操作选择。爱好级别类别中的汽车。跳频扩频（FHSS）已成为前面提到的硬件平台的主要传输技术。即使FHSS提供了抗噪声和抗干扰的能力，但部分频带类型的干扰对于整体系统性能而言可能尤其有害。这对于实时RC应用程序至关重要，因为它可能会增加系统延迟。本文通过两个主要指标来描述单个实时RC应用程序的性能，该应用程序在现实的多用户ISM环境中运行：系统滞后发生概率（SLOP）和丢失数据包的概率（PoLP）。同步FHSS多址（SFHSS-MA）和异步FHSS多址（AFHSSMA）环境均已建模。仿真结果表明关键工程参数对系统性能的影响程度，例如时钟漂移，并置用户数和可变数据包占空比。

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