QoE-Oriented Resource Allocation for DASH-Based Video Transmission over LTE Systems

Abstract

Dynamic Adaptive Streaming over HTTP (DASH), as one of the main video transmission technologies, has been widely concerned. However, due to the unstability of wireless environment and the restrictions of mobile networks, it is challenging to deliver DASH-based videos in LTE systems and enhance the performance of Quality of Experience (QoE). In this paper, a problem is formulated to maximize the sum of weighted rates of all DASH users constrained by resource blocks (RB) and transmit power. To solve this problem, we propose ulti-Cell DASH-based Video Transmission (MDVT) scheme, containing two phases: RBs allocation with fixed transmit power and power allocation with fixed RBs assignment. Simulation results reveal that the performance of MDVT outperforms the state-of-art schemes.