Wireless Adaptive Video Streaming with Edge Cloud
Kristofer Smith, Hang Liu, Li-Tse Hsieh, Xavier de Foy, Robert Gazda · Wireless Communications and Mobile Computing · 2018
Wireless data traffic, especially video traffic, continues to increase at a rapid rate. Innovative network architectures and protocols are needed to improve the efficiency of data delivery and the quality of experience (QoE) of mobile users. Mobile edge computing (MEC) is a new paradigm that integrates computing capabilities at the edge of the wireless network. This paper presents a computation‐capable and programmable wireless access network architecture to enable more efficient and robust video content delivery based on the MEC concept. It incorporates in‐network data processing and communications under a unified software‐defined networking platform. To address the multiple resource management challenges that arise in exploiting such integration, we propose a framework to optimize the QoE for multiple video streams, subject to wireless transmission capacity and in‐network computation constraints. We then propose two simplified algorithms for resource allocation. The evaluation results demonstrate the benefits of the proposed algorithms for the optimization of video content delivery.