Computationally efficient DOA estimation based on linear prediction with Capon method. - Mitsuru Hirakawa; Hiroyuki Tsuji; Akira Sano (ICASSP, 2001)

Development of Interference Cancellation Method using Adaptive Array Antenna for Uplink OFDMA in Mobile WiMAX. - Mitsuru Hirakawa; Takashi Yamamoto; Yoji Okada; Mitsuo Sugimoto (VTC Spring, 2009)

Resource Block Basis MMSE Beamforming for Interference Suppression in LTE Uplink. - Eiji Mochida; Mitsuru Hirakawa; Takashi Yamamoto; Yoshizo Tanaka; Yoshihiro Hamada; Yoji Okada; Mitsuo Sugimoto (VTC Spring, 2012)