Tetsuya Kawanishi is a Professor at Department of Electronic and Physical Systems, Faculty of Science and Engineering, Waseda University, and the Research Executive Director of Network System Research Institute, National Institute of Information and Communications Technology (NICT). He served on Photonics Technology Letter as an associate editor from 2008 to 2011, and on the Microwave Photonics sub-committee of the Photonics Society as a committee member. He also served as members or chairs of committees of the Optical Fiber Communication Conference (OFC), the Conference on Lasers and Electro-Optics (CLEO), OptoElectronics Communications Conference (OECC), the IEEE International Symposium on the Microwave Photonics (MWP), Asia-Pacific Microwave Photonics Conference (APMP), and Asia Communications and Photonics Conference (ACP). He was the general chair of MWP/APMP 2014 in Sapporo, Japan, and a TPC co-chair of ACP 2014. He also served for international standardization in IEEE 802 and also in non-IEEE standardization bodies, such as International Telecommunication Union (ITU), International Electrotechnical Commission (IEC) and Asia-Pacific Telecommunity (APT). Now, he is the chair of Task Group on Fixed Wireless Systems (TG-FWS) in APT Wireless Group (AWG).