Optimized Live 4K Video Multicast
Abstract
4K videos are becoming increasingly popular. However, despite advances in wireless technology, streaming 4K videos over mmWave to multiple users is facing significant challenges arising from directional communication, unpredictable channel fluctuation and high bandwidth requirements. This paper develops a novel 4K layered video multicast system. We (i) develop a video quality model for layered video coding, (ii) optimize resource allocation, scheduling, and beamforming based on the channel conditions of different users, and (iii) put forward a streaming strategy that uses fountain code to avoid redundancy across multicast groups and a Leaky-Bucket-based congestion control. We realize an end-to-end system on commodity-off-the-shelf (COTS) WiGig devices. We demonstrate the effectiveness of our system with extensive testbed experiments and emulation.
Keywords
Cite
@article{arxiv.2305.02155,
title = {Optimized Live 4K Video Multicast},
author = {Zhaoyuan He and Changhan Ge and Wangyang Li and Lili Qiu and Peijie Li and Ghufran Baig},
journal= {arXiv preprint arXiv:2305.02155},
year = {2024}
}
Comments
arXiv admin comment: This version has been removed by arXiv administrators as the submitter did not have the rights to agree to the license at the time of submission