Ultrareliable and Low-Latency Communication Techniques for Tactile Internet Services

Abstract

This paper presents novel Ultrareliable and lowlatency 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 1 .

A Review of Vision and Challenges of 6G Technology

“…to improve transfer and motivated protocol. Wireless communication systems cannot meet these requirements and wireless fiber communication systems are required [29].…”

Optimized Link Distribution Schemes for Ultrareliable and Low-Latent Communications in Multilayer Airborne Networks

“…The unassociated ratio is the unassociated LL flying platforms' percentage of all the LL flying platforms. For the ultra reliability communications, the unassociated ratio should be lower than 0.01% [4] and [5]. Otherwise, it could not be able to support the uRLLC.…”

“…Many applications have been proposed in the Tactile Internet services, such as immersive virtual reality, Internet of flying platforms, industry automation, tele-surgery, etc. [3] and [4]. uRLLC is considered as an extremely crucial for these type of applications.…”

“…Similarly, uRLLC is equally important for networks which are deployed during unexpected scenarios, such as in emergency situations to support disaster relief activities. The typical requirement of uRLLC is that the latency should be lower than 10ms and the reliability should be better than 99.999% [4] and [5]. As a result, there are challenges in link layer, network layer and physical layer [1].…”

Enhancing the Energy Efficiency of mmWave Massive MIMO by Modifying the RF Circuit Configuration

“…The consumption of data traffic is exponentially increasing in wireless networks and a large number of advanced user terminals are getting connected to the internet with every passing day, which in turn leads to the ever-increasing demand for higher data rates, as seen in the last couple of decades [1]. This rapid proliferation of internet data traffic along with the continuous increment in the number of new advanced user terminals have made the congestion in the lower frequency band spectrum [2].…”