Haptic Communication: Toward 5G Tactile Internet

In order to provide haptic transmission with low latency, high transparency, and high reliability, tactile internet combines with the fifth generation of mobile networks (5G) to form 5G tactile internet. Based on 5G tactile internet, haptic communication improves the immersion and realism of interaction by enriching the sensory experience in many critical aspects of industries. This paper presents an overview of the recent achievements in haptic communication, including signal capture, encoding, and delivery. We first introduce the concepts and applications of haptics. Then we list typical haptic devices for capturing and displaying. Among them, the wearable devices have a wider range of application scenarios. Thirdly, we summarize the typical methods and development directions of haptic encoding. Finally, we present the importance of haptic delivery and discuss the requirements, problems, and solutions for delivery. We hope our review and findings provide some insights into future research on haptic communication.