Multicast with View Synthesis for Wireless Virtual Reality
Journal
IEEE International Conference on Communications
Journal Volume
2020-June
Date Issued
2020
Author(s)
Abstract
With the emergence of innovative applications for Virtual Reality (VR) in touring, E-commerce, and social activities, high-quality VR video streaming becomes essential. To support numerous wireless VR users, this paper aims to leverage video synthesis techniques to effectively reduce the multicast bandwidth consumption. It synthesizes the view in the video for a user from the one of a nearby user with similar Field of View (FoV), under the virtual distance and view angle constraints. We first formulate a new optimization problem, named VR Content Sharing and Multicasting (VCSM), and prove the NP-hardness. Then, we propose View Sharing Relation Graph (VSRG) to model the synthesis relation between each pair of views. We then design a new algorithm, named Bandwidth-Efficient Multicast with Synthesis (BEMS) to select multicast views and the corresponding MCS in wireless networks. Simulation results show that BEMS can effectively reduce bandwidth consumption by more than 50% compared with state-of-the-art wireless transmission schemes. © 2020 IEEE.
Subjects
algorithm; multicast; synthesis; VR
Other Subjects
Bandwidth; Virtual reality; Bandwidth consumption; Bandwidth efficient; Content Sharing; Optimization problems; Social activities; State of the art; Video synthesis; Wireless transmission scheme; Multicasting
Type
conference paper