Packet Detection by a Single OFDM Symbol in URLLC for Critical Industrial Control: A Realistic Study

Packet Detection by a Single OFDM Symbol in URLLC for Critical Industrial Control: A Realistic Study
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用于关键工业控制的 URLLC 中单个 OFDM 符号的数据包检测:一项现实研究

DOI:
10.1109/jsac.2019.2898761
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发表时间:
2019-02
影响因子:
16.4
通讯作者:
Fischione Carlo
Fischione Carlo
中科院分区:
计算机科学1区
文献类型:
--
作者:
Jiang Xiaolin;Pang Zhibo;Zhan Ming;Dzung Dacfey;Luvisotto Michele;Fischione Carlo

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超高可靠和低延迟通信(URLLC)旨在支持具有严格延迟和可靠性要求的新兴应用。关键工业控制是最重要的 URLLC 应用之一,其严格的要求使得无线网络的部署至关重要,特别是在延迟方面。由于关键工业通信中交换的数据量通常较小,因此减少延迟的有效方法是从物理层 (PHY) 开始最大限度地减少数据包的同步开销。本文建议对关键无线工业通信使用短的单符号 PHY 前导码,与其他无线标准相比,显着减少传输延迟。讨论、分析和调整专用的数据包检测和同步算法,以确保通过如此极短的前导码实现所需的可靠性水平。理论分析、模拟和实验表明,使用所提出的前导码可以实现小于 10^{-6}$ 的检测错误率,同时最小化延迟。
Ultra-high reliable and low-latency communication (URLLC) is envisaged to support emerging applications with strict latency and reliability requirements. Critical industrial control is among the most important URLLC applications where the stringent requirements make the deployment of wireless networks critical, especially as far as latency is concerned. Since the amount of data exchanged in critical industrial communications is generally small, an effective way to reduce the latency is to minimize the packet’s synchronization overhead, starting from the physical layer (PHY). This paper proposes to use a short one-symbol PHY preamble for critical wireless industrial communications, reducing significantly the transmission latency with respect to other wireless standards. Dedicated packet detection and synchronization algorithms are discussed, analyzed, and tuned to ensure that the required reliability level is achieved with such extremely short preamble. Theoretical analysis, simulations, and experiments show that detection error rates smaller than $10^{-6}$ can be achieved with the proposed preamble while minimizing the latencies.
DOI: --
发表时间: 2015-04
期刊: arXiv: Information Theory
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