Jigsaw: Robust Live 4K Video Streaming
Jigsaw: Robust Live 4K Video Streaming Ghufran Baig1∗, Jian He1∗, Mubashir Adnan Qureshi1, Lili Qiu1, Guohai Chen2, Peng Chen2, Yinliang Hu2 1University of Texas at Austin, 2Huawei ABSTRACT KEYWORDS The popularity of 4K videos has grown significantly in the 4k Video; Live streaming; 60 GHz; Layered coding past few years. Yet coding and streaming live 4K videos incurs ACM Reference Format: prohibitive cost to the network and end system. Motivated Ghufran Baig1∗, Jian He1∗, Mubashir Adnan Qureshi1, Lili Qiu1, by this observation, we explore the feasibility of supporting Guohai Chen2, Peng Chen2, Yinliang Hu2 . 2019. Jigsaw: Robust Live live 4K video streaming over wireless networks using com- 4K Video Streaming. In The 25th Annual International Conference modity devices. Given the high data rate requirement of 4K on Mobile Computing and Networking (MobiCom ’19), October 21– videos, 60 GHz is appealing, but its large and unpredictable 25, 2019, Los Cabos, Mexico. ACM, New York, NY, USA, 16 pages. throughput fluctuation makes it hard to provide desirable https://doi.org/10.1145/3300061.3300127 user experience. In particular, to support live 4K video stream- ing, we should (i) adapt to highly variable and unpredictable 1 INTRODUCTION wireless throughput, (ii) support efficient 4K video coding on commodity devices. To this end, we propose a novel sys- Motivation: The popularity of 4K videos has grown rapidly, tem, Jigsaw. It consists of (i) easy-to-compute layered video thanks to a wide range of display options, more affordable coding to seamlessly adapt to unpredictable wireless link displays, and widely available 4K content. The first 4K TVs fluctuations, (ii) efficient GPU implementation of video cod- cost $20K in 2012, but now we can buy a good 4K TV under ing on commodity devices, and (iii) effectively leveraging $200.
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