Chaos-Based Interleave Division Multiple Access Scheme with Physical Layer Security. - Mamoru Okumura; Kaga Tomoki; Eiji Okamoto; Tetsuya Yamamoto (CCNC, 2021)

Multi-Level Encrypted Transmission Scheme Using Hybrid Chaos and Linear Modulation. - Kaga Tomoki; Mamoru Okumura; Eiji Okamoto; Tetsuya Yamamoto (IEICE Trans. Commun., 2022)