Dual stream system cuts video data for wireless use
Toward Generative Video Communication: A Dual-Stream Digital Transmission Framework
Multimedia
Summary
Sending video over wireless networks can use a lot of data, which is a problem when bandwidth is limited. The authors propose a new system that sends video in two parts: one part sends normal video frames as references, and another sends simplified information that a receiver uses to generate the video. This approach helps maintain good video quality while using less bandwidth. They also explored how the system works under different network conditions and showed it improves video smoothness and appearance during connection issues.
What this means in practice
- •For mobile network engineers: Implement a video transmission system that reduces data load and maintains quality over unstable wireless connections.
- •For video streaming platform developers: Create streaming services that personalize video content delivery using compact semantic-video data for improved user experience under bandwidth limits.$Commercial implications: Allows novel video streaming products that deliver high-quality personalized content with reduced bandwidth costs.
Authors
Bingyan Xie, Longyu Zhou, Tianhao Liang, Yongpeng Wu, Zehui Xiong, Wenjun Zhang, Tony Q. S. Quek
Abstract
Generative video communication has shown promise for bandwidth-constrained wireless transmission and has the potential to support personalized content delivery. In this article, we propose a dual-stream digital generative video communication (DGVC) framework that integrates a traditional digital link with a generative link. The traditional link provides source-grounded visual references, while the generative link conveys compact semantic and perceptual information for receiver-side generation. We further discuss three bandwidth-dependent operating regimes and key technologies for dual-stream coordination, synchronization, reliability, and latency control. A practical case study demonstrates the perceptual and temporal-quality benefits of DGVC under wireless fading channels. Finally, we discuss open challenges and future research directions for generative video communication.