TY - JOUR
T1 - High-Reliability and Low-Latency Wireless Communication for Internet of Things
T2 - Challenges, Fundamentals, and Enabling Technologies
AU - Ma, Zheng
AU - Xiao, Ming
AU - Xiao, Yue
AU - Pang, Zhibo
AU - Poor, H. Vincent
AU - Vucetic, Branka
N1 - Funding Information:
Manuscript received October 30, 2018; revised February 27, 2019; accepted March 16, 2019. Date of publication March 25, 2019; date of current version October 8, 2019. The work of Z. Ma was supported in part by the National Natural Science Foundation of China under Grant U1734209, Grant U1709219, and Grant 61571373, in part by the Key International Cooperation Project of Sichuan Province under Grant 2017HH0002, in part by the Marie Curie Fellowship under Grant 792406, in part by the NSFC China–Swedish Project under Grant 6161101297, in part by the 111 Project under Grant 111-2-14, and in part by the Cooperation Project with Huawei Technologies. The work of M. Xiao was supported in part by the Swedish Strategic Research Foundation through “High-Reliable Low-Latency Industrial Wireless Communications,” in part by the European Union, H2020, Marie Sklodowska-Curie Actions H2020 through “High-Reliability Low-Latency Communications With Network Coding,” and in part by the ERA-NET Smart Energy through “SMART-MLA.” The work of H. V. Poor was supported by the U.S. National Science Foundation under Grant CCF-0939370 and Grant CCF-1513915. The work of B. Vucetic was supported in part by the Australian Research Council Laureate Fellowship under Grant FL160100032. (Corresponding author: Ming Xiao.) Z. Ma is with the Communications and Sensor Networks for Modern Transportation, International Cooperation Research Centre of China, Southwest Jiaotong University, Chengdu 610031, China (e-mail: zma@swjtu.cn).
Publisher Copyright:
© 2014 IEEE.
PY - 2019/10
Y1 - 2019/10
N2 - 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 low-latency (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.
AB - 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 low-latency (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.
KW - High-reliability and low-latency wireless communication
KW - Internet of Things (IoT)
KW - MAC layer
KW - network layer
KW - physical layer
UR - http://www.scopus.com/inward/record.url?scp=85073688750&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85073688750&partnerID=8YFLogxK
U2 - 10.1109/JIOT.2019.2907245
DO - 10.1109/JIOT.2019.2907245
M3 - Article
AN - SCOPUS:85073688750
VL - 6
SP - 7946
EP - 7970
JO - IEEE Internet of Things Journal
JF - IEEE Internet of Things Journal
SN - 2327-4662
IS - 5
M1 - 8673568
ER -