1. School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
2. Spreadtrum Communications (Shanghai) Company Ltd., Shanghai, China
3. Shenzhen Research Institute of Big Data, Shenzhen, China
4. School of Information Engineering, Nanchang University, Nanchang, China
5. National Mobile Communications Research Laboratory, Southeast University, Nanjing, China
6. Center for Information Photonics and Communications, Southwest Jiaotong University, Chengdu, China
7. Institut Supérieur d’Électronique de Paris (ISEP Paris), Paris, France