Balancing QoE and fairness of layered video multicast in LTE networks

In video streaming, user-perceived quality is more important rather than user-receiving data rate, as well as fairness of user satisfaction should be considered. In cooperation with the adaptive modulation and coding schemes, a layered video multicast transmission may provide an efficient way to handle receiver heterogeneity and wireless channel heterogeneity, since different modulation and coding schemes may be applied to the video layers, so different video layers may be distributed to the users located in different ranges. In this paper, we present formal framework for optimal resource allocation in terms of throughput, PF(proportional fairness) w.r.t. throughput, QoE, and PF w.r.t. QoE. Comparing with QoE maximization strategy, we show the PF w.r.t. QoE allocation strategy enforces large fairness improvement with a little QoE degradation expense.