Applying a symmetrization method by coding to non-symmetric mixed-state signals. - Souichi Takahira; Tsuyoshi Sasaki Usuda (ISITA, 2018)

Quantum algorithm for matrix functions by Cauchy's integral formula. - Souichi Takahira; Asuka Ohashi; Tomohiro Sogabe; Tsuyoshi Sasaki Usuda (Quantum Inf. Comput., 2020)

Quantum algorithms based on the block-encoding framework for matrix functions by contour integrals. - Souichi Takahira; Asuka Ohashi; Tomohiro Sogabe; Tsuyoshi Sasaki Usuda (Quantum Inf. Comput., 2022)

On Optimal Ternary Signal Constellation Maximizing Capacity Under Energy Constraints. - Shion Kitamura; Tiancheng Wang; Souichi Takahira; Tsuyoshi Sasaki Usuda (ISITA, 2024)

Property of Classical Reliability Function for BPSK Signals Coded by Simplex Codes with SRM. - Ken Masaki; Tiancheng Wang; Shogo Usami; Souichi Takahira; Tsuyoshi Sasaki Usuda (ISITA, 2024)