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Ultrareliable and Low-Latency Communication Techniques for Tactile Internet Services

Authors
Kim, Kwang SoonKim, Dong KuChae, Chan-ByoungChoi, SunghyunKo, Young-ChaiKim, JonghyunLim, Yeon-GeunYang, MinhoKim, SundoLim, ByungjuLee, KwanghoonRyu, Kyung Lin
Issue Date
2월-2019
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
Full-duplex communications; multiple access schemes; tactile internet; URLLC; waveform multiplexing
Citation
PROCEEDINGS OF THE IEEE, v.107, no.2, pp.376 - 393
Indexed
SCIE
SCOPUS
Journal Title
PROCEEDINGS OF THE IEEE
Volume
107
Number
2
Start Page
376
End Page
393
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/67775
DOI
10.1109/JPROC.2018.2868995
ISSN
0018-9219
Abstract
This paper presents novel ultrareliable and low-latency communication (URLLC) techniques for URLLC services, such as Tactile Internet services. Among typical use cases of URLLC services are teleoperation, immersive virtual reality, cooperative automated driving, and so on. In such URLLC services, new kinds of traffic such as haptic information including kinesthetic information and tactile information need to be delivered in addition to high-quality video and audio traffic in traditional multimedia services. Furthermore, such a variety of traffic has various characteristics in terms of packet sizes and data rates with a variety of requirements of latency and reliability. Furthermore, some traffic may occur in a sporadic manner but requires reliable delivery of packets of medium to large sizes within a low latency, which is not supported by current state-of-the-art wireless communication systems and is very challenging for future wireless communication systems. Thus, to meet such a variety of tight traffic requirements in a wireless communication system, novel technologies from the physical layer to the network layer need to be devised. In this paper, some novel physical layer technologies such as waveform multiplexing, multiple-access scheme, channel code design, synchronization, and full-duplex transmission for spectrally efficient URLLC are introduced. In addition, a novel performance evaluation approach, which combines a ray-tracing tool and system-level simulation, is suggested for evaluating the performance of the proposed schemes. Simulation results show the feasibility of the proposed schemes providing realistic URLLC services in realistic geographical environments, which encourages further efforts to substantiate the proposed work.
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