论文标题
高性能工业无线：实现IEEE 802.11 WLAN的可靠和确定性连通性
High-Performance Industrial Wireless: Achieving Reliable and Deterministic Connectivity over IEEE 802.11 WLANs
论文作者
论文摘要
以控制为中心的工业应用的沟通的特征在于非常高可靠性，非常低和确定性的延迟和高可扩展性的要求。通常，基于IEEE 802.11的无线局域网（WLAN），也称为Wi-Fi网络，由于可靠性不足和非确定性延迟而被认为是工业控制应用的资格。本文提出了一种新的解决方案，用于通过Wi-Fi在工业环境中提供可靠和确定性的沟通。所提出的解决方案，称为\ textsf {har \（^\ text {2} \）d-fi}（\ usewsuess {用于实现确定性交流的混合通道访问机制。它还为增强可靠性提供时间冗余。 \ textsf {har \（^\ text {2} \）d-fi}实现了在标准物理（PHY）层上构建的不同介质访问控制（Mac）设计。此类设计可以分为两类：（a）具有预定义（物理）时间间隔时间表的MAC设计，以及（b）具有虚拟时间间隔时间表的Mac设计。绩效评估基于分析和系统级模拟，证明了\ textsf {har \（^\ text {2} \）d-fi}的可行性，用于控制以控制为中心的工业应用。
Communication for control-centric industrial applications is characterized by the requirements of very high reliability, very low and deterministic latency and high scalability. Typically, IEEE 802.11-based wireless local area networks (WLANs), also known as Wi-Fi networks, are deemed ineligible for industrial control applications owing to insufficient reliability and non-deterministic latency. This paper proposes a novel solution for providing reliable and deterministic communication, through Wi-Fi, in industrial environments. The proposed solution, termed as \textsf{HAR\(^\text{2}\)D-Fi} (\underline{H}ybrid channel \underline{A}ccess with \underline{R}edundancy for \underline{R}eliable and \underline{D}eterministic Wi-\underline{Fi}), adopts hybrid channel access mechanisms for achieving deterministic communication. It also provides temporal redundancy for enhanced reliability. \textsf{HAR\(^\text{2}\)D-Fi} implements different medium access control (MAC) designs that build on the standard physical (PHY) layer. Such designs can be classified into two categories: (a) MAC designs with pre-defined (physical) time-slotted schedule, and (b) MAC designs with virtual time-slotted schedule. Performance evaluation, based on analysis and system-level simulations, demonstrates the viability of \textsf{HAR\(^\text{2}\)D-Fi} for control-centric industrial applications.
