Queueing Theory and Network Applications 13th International Conference, QTNA 2018, Tsukuba, Japan, July 25-27, 2018, Proceedings - Takahashi, Yutaka; Takahashi, Yutaka; Phung-Duc, Tuan; Phung-Duc, Tuan; Wittevrongel, Sabine; Wittevrongel, Sabine; Yue, Wuyi; Yue, Wuyi (Springer International Publishing : Imprint: Springer, 2018)