Improvement of Air to Ground Communication Techniques on the AeroMACS Standard - FUTATSUMORI, Shunichi; MORIOKA, Kazuyuki; KANADA, Naoki; SUMIYA, Yasuto; NAGANAWA, Junichi; YONEMOTO, Naruto; KOHMURA, Akiko; LU, Xiaodong (Electronic Navigation Research Institute papers, 2021)