Multicast Group Management for Multi-View 3D Videos in Wireless Networks

TL;DR

This paper introduces a protocol for managing multicast groups in multi-view 3D video streaming over wireless networks, utilizing depth-image-based rendering to reduce bandwidth and improve view success rates.

Contribution

It proposes the MVGMP protocol that dynamically manages multicast groups and incorporates DIBR to optimize bandwidth and view delivery in multi-view 3D video multicast.

Findings

Reduces bandwidth consumption significantly.

Increases successful view playback probability.

Improves multicast efficiency in wireless networks.

Abstract

With the emergence of 3D mobile devices available in the markets, mobile 3D video services become increasingly important for video service providers, such as Youtube and Netflix, while multi-view 3D videos are potential to bring out varied innovative applications. However, enabling multi-view 3D video services may overwhelm WiFi networks when we multicast every view of a video. In this paper, therefore, we propose to incorporate depth-image-based rendering (DIBR), which allows each mobile client to synthesize the desired view from nearby left and right views, to effectively reduce the bandwidth consumption. Moreover, due to varied channel conditions, each client may suffer from different packet loss probabilities, and retransmissions incur additional bandwidth consumption. To address this issue, we first analyze the merit of view protection via DIBR for multi-view video multicast and then design a new protocol, named Multi-View Group Management Protocol (MVGMP), for the dynamic group management of multicast users. Simulation results manifest that our protocol effectively reduces bandwidth consumption and increases the probability for each client to successfully playback the desired view of a multi-view 3D video.