Ikuro Kashiwamura Shunsuke Tomita Kazuhiro Komatsu Ngoc Hao Tran Hiroshi Oguma Noboru Izuka Suguru Kameda Tadashi Takagi Kazuo Tsubouchi Investigation on single-carrier and multi-carrier hybrid system for uplink. 3188-3192 2009 PIMRC http://dx.doi.org/10.1109/PIMRC.2009.5449940 conf/pimrc/2009 db/conf/pimrc/pimrc2009.html#KashiwamuraTKTOIKTT09