National Institute of Information and Communications Technology, 2-1 Nukui-kita 4-chome, Koganei, Tokyo, 184-8795 Japan

National Institute of Information and Communications Technology, 2-1 Nukui-kita 4-chome, Koganei, Tokyo, 184-8795 Japan

National Institute of Information and Communications Technology, 2-1 Nukui-kita 4-chome, Koganei, Tokyo, 184-8795 Japan

National Institute of Information and Communications Technology, 2-1 Nukui-kita 4-chome, Koganei, Tokyo, 184-8795 Japan

National Institute of Information and Communications Technology, 2-1 Nukui-kita 4-chome, Koganei, Tokyo, 184-8795 Japan

Department of Telecommunications, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang, 3-2, Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand

Department of Telecommunications, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang, 3-2, Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand

Department of Electrical Engineering, Faculty of Engineering, Chiang Mai University, Chiangmai 50200, Thailand

Institute of Geophysics, Vietnamese Academy of Science and Technology, 18 Hoang Quoc Viet Str., Cau Giay, Hanoi, Vietnam