Long-Haul SDM Transmission over 12-Coupled-Core Fiber with Semi-Real-Time $24 times 24$ MIMO Processing on FPGA. - Manabu Arikawa; Kohei Hosokawa; Takahiro Odaqawa; Hironori Nakanishi; Takaya Maeda; Hiroshi Mukai; Kohki Shlbahara; Taiji Sakamoto; Ryota Imada; Kazuhide Nakajima; Yutaka Miyamoto (ECOC, 2025)