Optimized Live 4K Video Multicast
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866929196049104896 |
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| author | He, Zhaoyuan Ge, Changhan Li, Wangyang Qiu, Lili Li, Peijie Baig, Ghufran |
| author_facet | He, Zhaoyuan Ge, Changhan Li, Wangyang Qiu, Lili Li, Peijie Baig, Ghufran |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2305_02155 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Optimized Live 4K Video Multicast He, Zhaoyuan Ge, Changhan Li, Wangyang Qiu, Lili Li, Peijie Baig, Ghufran Networking and Internet Architecture 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. |
| title | Optimized Live 4K Video Multicast |
| topic | Networking and Internet Architecture |
| url | https://arxiv.org/abs/2305.02155 |