Enabling Free Viewpoint Television with P2P Networks
Free viewpoint television enables users to view a scenario from arbitrary viewpoint as if they are physically in the scenario and can watch the scene freely. Thus, Free viewpoint television can provide immersive experience of physical event broadcast, especially for large scale live vocal concert broadcasts. However, huge bandwidth demand is a major challenge faced by free viewpoint television broadcast since many streaming with different view angles are needed for users' selection. In this paper, we propose a scheme named P2P transcoder to realize free viewpoint video streaming transmissions. It selects a subset of users to work as transcoders and these transcoders will produce video rates/angles that other remaining users request. Thus the total amount of traffic to deliver is greatly reduced and more saved bandwidth can be used to improve the video quality. We further build a model for achieving optimal bandwidth allocation using this scheme. Numerical results show that the proposed scheme can significantly improve the video quality as compared with existing work.
2018 IEEE Global Communications Conference (GLOBECOM)