  Recent advances in software-defined mobile networks (SDMNs), in-network
caching, and mobile edge computing (MEC) can have great effects on video
services in next generation mobile networks. In this paper, we jointly consider
SDMNs, in-network caching, and MEC to enhance the video service in next
generation mobile networks. With the objective of maximizing the mean
measurement of video quality, an optimization problem is formulated. Due to the
coupling of video data rate, computing resource, and traffic engineering
(bandwidth provisioning and paths selection), the problem becomes intractable
in practice. Thus, we utilize dual-decomposition method to decouple those three
sets of variables. Extensive simulations are conducted with different system
configurations to show the effectiveness of the proposed scheme.
