Ultrareliable and low-latency communication techniques for tactile internet services

Kwang Soon Kim, Dong Ku Kim, Chan Byoung Chae, Sunghyun Choi, Young Chai Ko, Jonghyun Kim, Yeon Geun Lim, Minho Yang, Sundo Kim, Byungju Lim, Kwanghoon Lee, Kyung Lin Ryu

Research output: Contribution to journalArticlepeer-review

84 Citations (Scopus)


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.

Original languageEnglish
Article number8474959
Pages (from-to)376-393
Number of pages18
JournalProceedings of the IEEE
Issue number2
Publication statusPublished - 2019 Feb


  • Full-duplex communications
  • multiple access schemes
  • tactile internet
  • waveform multiplexing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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