作者机构:[1]National Digital Switching System Engineering & Technological Research Center, Zhengzhou 450002, China, [2]Zhengzhou Information Science and Technology Institute, Zhengzhou 450002, China
相关基金:Project supported by the National Natural Science Foundation of China (No. 61201381), the Future Development Foundation of Zhengzhou Information Science and Technology Institute (No. YPI2JJ202057), China Postdoctoral Science Foundation (No. 2016M592989), and the Outstanding Youth Foundation of Information Engineering University (No. 2016603201)