What is it about?
It's hard to achieve both high throughput and low latency for video streaming over 5G(cellular) networks due to the volatile link capacity. This paper proposes Octopus, the first work that leverages in-network content adaption to stream 5G videos smoothly. Octopus highly couples the end-host protocol with the 5G base station router to achieve fast and reactive congestion control.
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Photo by Frederik Lipfert on Unsplash
Why is it important?
Our findings show that it's possible to stream videos over volatile 5G networks in a low-latency and high-throughput manner. Besides, we're the first work to explore to use SVC(scalable video codec) to allow fast content adaption in both the end-host and the base station.
Perspectives
I hope this article can improve the performance of all real-time video streaming systems in the future: including untethered VR&AR, video analytics, video conferences, etc. It explored and unveiled an important aspect: it's possible to control the congestion happening in wireless links via content adaptation by dropping packets. Therefore, engineers can bypass the burden of developing a perfect congestion controller for the unpredictable and volatile wireless link.
Yongzhou Chen
University of Illinois at Urbana-Champaign
Read the Original
This page is a summary of: Octopus: In-Network Content Adaptation to Control Congestion on 5G Links, December 2023, ACM (Association for Computing Machinery),
DOI: 10.1145/3583740.3628438.
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