Immersive technologies such as virtual reality (VR), augmented reality (AR),
and holograms will change users' digital experience. These immersive
technologies have a multitude of applications, including telesurgeries,
teleconferencing, Internet shopping, computer games, etc. Holographic-type
communication (HTC) is a type of augmented reality media that provides an
immersive experience to Internet users. However, HTC has different
characteristics and network requirements, and the existing network architecture
and transport protocols may not be able to cope with the stringent network
requirements of HTC. Therefore, in this paper, we provide an in-depth and
critical study of the transport protocols for HTC. We also discuss the
characteristics and the network requirements for HTC. Based on the performance
evaluation of the existing transport protocols, we propose a roadmap to design
new high-performance transport protocols for immersive applications.Comment: Accepted in The 14th International Conference on Ubiquitous and
Future Networks (ICUFN 2023), Paris France, July 4-7 202