Ultrareliable and Low-Latency Communication Techniques for Tactile Internet Services
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 tele-operation, 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. Further, 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 require 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.
Cite
@article{arxiv.1907.04474,
title = {Ultrareliable and Low-Latency Communication Techniques for Tactile Internet Services},
author = {Kwang Soon Kim and Dong Ku Kim and Chan-Byoung Chae and Sunghyun Choi and Young-Chai Ko and Jonghyun Kim and Yeon-Geun Lim and Minho Yang and Sundo Kim and Byungju Lim and Kwanghoon Lee and Kyung Lin Ryu},
journal= {arXiv preprint arXiv:1907.04474},
year = {2019}
}