1. Department of Electronic and Computer Engineering, Institute Supérieur d’Electronique de Paris, Paris, France
2. Department of Electronic and Computer Engineering, Brunel University, Uxbridge, U.K.
3. Department of Engineering, University of Leicester, Leicester, U.K.
4. Department of Engineering, Viavi Solutions, Stevenage, U.K.
5. Department Wireless Distribution Systems, Fraunhofer Institute for Integrated Circuits IIS, Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V., Erlangen, Germany
6. Research and Development Department, Issy Média, Issy-Les-Moulineaux, France
7. Department of Electronic Engineering, Research Institute of Information Technology, Tsinghua National Laboratory of Information Science and Technology, Tsinghua University, Beijing, China