Ensuring QoE in contemporary mobile networks for video content distribution

A framework that aims to best utilize the mobile network resources for video applications is presented in this paper. The main contribution of the work proposed is the QoE-driven optimization method that can maintain a desired trade-off between fairness and efficiency in allocating resources in terms of data rates to video streaming users in LTE networks. This method is concerned with the control of the user satisfaction level from the service continuity's point of view and applies appropriate QoE metrics (Pause Intensity and variations) to determine the scheduling strategies in combination with the mechanisms used for adaptive video streaming such as 3GP/MPEG-DASH. The superiority of the proposed algorithms are demonstrated, showing how the resources of a mobile network can be optimally utilized by using quantifiable QoE measurements. This approach can also find the best match between demand and supply in the process of network resource distribution.

Reflections on race in contemporary Ireland

Any reflection on the category "race" in the contemporary world is inevitably framed by the cumulative layers of meanings and practices attached to bodies and cultures over the previous centuries. If the idea of race resembles anything, it is a palimpsest,1with past interpretations leaking through to make the ink of the present run. Accordingly, I present some historical notes not as a distinct prelude to the "real" story, positing a rupture of past and present, but as the beginning of the story proper.