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Video streaming is in high demand by mobile users, as recent studies indicate. In cellular networks, however, the unreliable wireless channel leads to two major problems. Poor channel states degrade video quality and interrupt the playback when a user cannot sufficiently fill its local playout buffer: buffer underruns occur. In contrast to that, good channel conditions cause common greedy buffering schemes to pile up very long buffers. Such over-buffering wastes expensive wireless channeldoi:10.1109/netsys.2015.7089073 dblp:conf/kivs/DraxlerBDVK15 fatcat:u3gxm7ysxzhedgrh7fadxhzri4