Key solutions for light limitations

Enabling haptic communication as well as voice and data over the future 5G cellular system 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. The end-to-end latency of 1ms remain the main challenge toward the 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. We review the exiting work for the model mediated bilateral systems and discuss its availability for the Tactile Internet system. Finally, we suggest a structure for the Tactile Internet system with the deployment of model mediated.