Issues and Challenges Facing Low Latency in Tactile Internet

Tactile Internet is considered as the next step towards a revolutionary impact on the society, this is due to the introduction of different types of applications mainly the haptic ones that require strict Quality of Service guarantee especially in terms of latency. This would be a major challenge towards the design of new communication technologies and protocols in order to provide ultra-low latency. This article discusses the diverse technologies, communication protocols, and the necessary infrastructure to provide low latency based principally on the fifth generation (5G) of mobile network that is considered as the key enablers of the Tactile Internet. Furthermore, current research direction along with future challenges and open issues are discussed extensively

Supermedia Transport for Teleoperations over Overlay Networks

In real-time Internet based teleoperation systems, the operator controls the robot and receives feedback through the Internet. Supermedia refers to robotic control commands, video, audio, haptic feedback, and other sensory information in the control system. Traditional transport services may not be able to meet the timely transmission requirements and dynamic priority changes of supermedia streams. This paper aims to design an e#cient transport service for teleoperation applications

An Overlay Network Transport Service for Teleoperation Systems

In real-time Internet based teleoperation systems, the Internet is the communication medium through which the operator sends control commands to the robot and receives feedback. Teleoperation systems support robotic control commands, video, audio, haptic feedback, and other sensory information, which are called supermedia. Traditional transport services of the Internet may not be able to meet the timely transmission requirements and dynamic priorities of supermedia streams. This paper aims to design an efficient and reliable transport service for teleoperation applications. Built upon multiple disjoint paths in overlay networks, Supermedia TRansport for teleoperations over Overlay Networks (STRON) uses forward error correction encodings to reduce end-to-end latency for the transmission of supermedia streams. Network routes and encoding redundancy may be adjusted dynamically to meet the QoS requirements of the supermedia streams in the face of networking performance degradation. At the cost of minimal encoding computation, the system achieves better performance in transporting supermedia streams than available transport services and at the same time remains friendly to other Internet traffic. Evaluations using PlanetLab available bandwidth traces show that STRON can significantly reduce latency