Abstract
Enabling haptic communication as well as voice and data over the future 5G cellular system has become a demand. Tactile Internet is one of the main use cases of the 5G system that will allow the transfer of haptic communications in real time. Latency, availability, reliability, and security are the main design challenges of the tactile Internet system and haptic based bilateral teleoperation systems. An end-to-end latency of 1 ms remains the main challenge toward tactile Internet system realization, not only for the processing and coding delays but mainly for the limitations of light. In this work, we analyze the key solutions to overcome the light limitations and enable the tactile Internet over any distances with the required latency. Building a virtual model or model mediated for the remote environment at the edge cloud unit near to the end user is the main solution. By means of AI, the virtual model can predict the behavior of the remote environment and thus, the end user can interact with the virtual environment with a high system experience. This literature review covers the existing work of the model mediated bilateral teleoperated systems and discusses its availability for the tactile Internet system. Furthermore, the security issues of tactile Internet system and the effect of model mediated system on the required security level of tactile Internet applications are discussed. Finally, a structure for the tactile Internet system, with the deployment of model mediation, is suggested.
Highlights
Tactile Internet is the future communication system that enables the communication of human sense of touch and actuation in a real time [1]
In [41], we developed a multi-level edge computing framework for the tactile Internet system, which can be used to decrease the communication latency and achieves the 1 ms challenge, while the two communicated parts are in vicinity
Tactile Internet will provide the medium for the transmission of haptic information side by side with the audio and video data with the required latency and reliability constraints
Summary
Tactile Internet is the future communication system that enables the communication of human sense of touch and actuation in a real time [1]. Tactile Internet will provide the communication medium for the human controlled unmanned aerial vehicle applications with the required latency, reliability, and system availability [28]. This work mainly considers the 1 ms latency constraint with consideration to light limitations and associated security issues It introduces a literature review of model mediated systems that can be used to overcome light limitations and realize the tactile Internet system.
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