Live Video Streaming with Joint User Association and Caching Placement in Mobile Edge Computing

Wei Yu Chen, Po Yu Chou, Chih Yu Wang, Ren Hung Hwang, Wen Tsuen Chen

研究成果: Conference contribution同行評審

7 引文 斯高帕斯(Scopus)

摘要

Mobile live video streaming is expected to become mainstream in the fifth-generation (5G) mobile networks. To boost the Quality of Experience (QoE) of live video streaming services, the integration of Scalable Video Coding (SVC) with Mobile Edge Computing (MEC) becomes a natural candidate due to its scalability, reliability, and the low-latency transmission supports for real-time interactions. However, it still takes efforts to integrate MEC into live video streaming services to exploit its full potentials. We find that the efficiency of the MEC-enabled cellular system can be significantly improved when the requests of users can be redirected to proper MEC servers through optimal user associations. In light of this observation, we jointly address the caching placement, video quality decision, and user association problem in the live video streaming service. Since the proposed nonlinear integer optimization problem is NP-hard, we develop a two-step approach from a Lagrangian optimization under the dual pricing specification. The proposed algorithm has an explicit analytic solution and can be applied from the supply-demand pricing perspective. The simulation results show that the service quality of live video streaming in the MEC-enabled cellular system can be significantly improved through the proposed system.

原文English
主出版物標題2020 International Conference on Computing, Networking and Communications, ICNC 2020
發行者Institute of Electrical and Electronics Engineers Inc.
頁面796-801
頁數6
ISBN(電子)9781728149059
DOIs
出版狀態Published - 2月 2020
事件2020 International Conference on Computing, Networking and Communications, ICNC 2020 - Big Island, United States
持續時間: 17 2月 202020 2月 2020

出版系列

名字2020 International Conference on Computing, Networking and Communications, ICNC 2020

Conference

Conference2020 International Conference on Computing, Networking and Communications, ICNC 2020
國家/地區United States
城市Big Island
期間17/02/2020/02/20

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