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High-Reliability and Low-Latency Wireless Communication for Internet of Things: Challenges, Fundamentals, and Enabling Technologies
Southwest Jiaotong Univ, Int Cooperat Res Ctr China, Commun & Sensor Networks Modern Transportat, Chengdu 610031, Sichuan, Peoples R China..
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Information Science and Engineering.ORCID iD: 0000-0002-5407-0835
Univ Elect Sci & Technol China, Natl Key Lab Sci & Technol Commun, Chengdu 611731, Sichuan, Peoples R China..
ABB Corp Res, Automat Solut, S-72178 Västerås, Sweden..
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2019 (English)In: IEEE Internet of Things Journal, ISSN 2327-4662, Vol. 6, no 5, p. 7946-7970Article in journal (Refereed) Published
Abstract [en]

As one of the key enabling technologies of emerging smart societies and industries (i.e., industry 4.0), the Internet of Things (IoT) has evolved significantly in both technologies and applications. It is estimated that more than 25 billion devices will be connected by wireless IoT networks by 2020. In addition to ubiquitous connectivity, many envisioned applications of IoT, such as industrial automation, vehicle-to-everything (V2X) networks, smart grids, and remote surgery, will have stringent transmission latency and reliability requirements, which may not be supported by existing systems. Thus, there is an urgent need for rethinking the entire communication protocol stack for wireless IoT networks. In this tutorial paper, we review the various application scenarios, fundamental performance limits, and potential technical solutions for high-reliability and lowlatency (HRLL) wireless IoT networks. We discuss physical, MAC (medium access control), and network layers of wireless IoT networks, which all have significant impacts on latency and reliability. For the physical layer, we discuss the fundamental information-theoretic limits for HRLL communications, and then we also introduce a frame structure and preamble design for HRLL communications. Then practical channel codes with finite block length are reviewed. For the MAC layer, we first discuss optimized spectrum and power resource management schemes and then recently proposed grant-free schemes are discussed. For the network layer, we discuss the optimized network structure (traffic dispersion and network densification), the optimal traffic allocation schemes and network coding schemes to minimize latency.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2019. Vol. 6, no 5, p. 7946-7970
Keywords [en]
High-reliability and low-latency wireless communication, Internet of Things (IoT), MAC layer, network layer, physical layer
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-265854DOI: 10.1109/JIOT.2019.2907245ISI: 000491295800051Scopus ID: 2-s2.0-85073688750OAI: oai:DiVA.org:kth-265854DiVA, id: diva2:1382550
Note

QC 20200103

Available from: 2020-01-03 Created: 2020-01-03 Last updated: 2020-01-03Bibliographically approved

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