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Packet Detection by a Single OFDM Symbol in URLLC for Critical Industrial Control: A Realistic Study
KTH, Skolan för elektroteknik och datavetenskap (EECS), Nätverk och systemteknik.ORCID-id: 0000-0003-4158-9424
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2019 (engelsk)Inngår i: IEEE Journal on Selected Areas in Communications, ISSN 0733-8716, E-ISSN 1558-0008, Vol. 37, nr 4, s. 933-946Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

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.

sted, utgiver, år, opplag, sider
Institute of Electrical and Electronics Engineers (IEEE), 2019. Vol. 37, nr 4, s. 933-946
Emneord [en]
Packet detection, URLLC, differential detection, transmission prediction, USRP validation
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-248321DOI: 10.1109/JSAC.2019.2898761ISI: 000461853500018Scopus ID: 2-s2.0-85061983989OAI: oai:DiVA.org:kth-248321DiVA, id: diva2:1303632
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QC 20190410

Tilgjengelig fra: 2019-04-10 Laget: 2019-04-10 Sist oppdatert: 2019-05-07bibliografisk kontrollert

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