Energy-efficient Video Streaming System with TCP/UDP over Heterogeneous Wireless Networks

Yunmin Go, Hyunmin Noh, Jeung Won Choi, Kyungwoo Kim, Kihun Kim, Jongman Lee, Hyun Park, Hwangjun Song

http://doi.org/10.5626/JOK.2020.47.11.1092

In this paper, we propose a video streaming system with TCP/UDP over heterogeneous wireless networks. Unlike the existing HTTP adaptive streaming system, the proposed system can use both TCP and UDP to overcome the TCP"s performance degradation problem and improve energy efficiency. The proposed system determines the type of transport protocol, the video quality, and the amount of data received through each wireless network according to the network conditions, buffer occupancy, and energy efficiency of the mobile device. When UDP is selected as the transport protocol, the proposed system employs raptor code to provide more reliable data transmission. And raptor parameters, such as symbol size, the amount of redundant data, are also determined to provide energy-efficient transmission. The proposed system is implemented in an android device and verified in real WiFi and LTE networks. Also, it is verified that the proposed system can provide high energy-efficient and high-quality streaming services.