A First Look at Quality of Mobile Live Streaming Experience: the Case of   Periscope
  Live multimedia streaming from mobile devices is rapidly gaining popularity but little is known about the QoE they provide. In this paper, we examine the Periscope service. We first crawl the service in order to understand its usage patterns. Then, we study the protocols used, the typical quality of experience indicators, such as playback smoothness and latency, video quality, and the energy consumption of the Android application. 
Matti Siekkinen and Enrico Masala and Teemu K\"am\"ar\"ainen
cs.MM cs.NI