NL-Beep: A Ranging System between Multiple Smartphones Using Acoustic Sensing in NLOS Environments. - Hiroaki Murakami; Yuki Kandori; Takumi Suzaki; Masanari Nakamura; Hiroki Watanabe; Hiromichi Hashizume; Masanori Sugimoto (IPIN, 2021)

Expanding the Positioning Area for Acoustic Localization Using COTS Mobile Devices. - Takumi Suzaki; Masanari Nakamura; Hiroaki Murakami; Hiroki Watanabe; Hiromichi Hashizume; Masanori Sugimoto (MobiQuitous, 2021)

PT-Sync: COTS Speaker-based Pseudo Time Synchronization for Acoustic Indoor Positioning. - Takumi Suzaki; Hiroaki Murakami; Masanari Nakamura; Hiroki Watanabe; Hiromichi Hashizume; Masanori Sugimoto (IPIN, 2022)