Jaehak Chung

Sep 16, 2024 | mdpi.com | Seunghwan Seol |Yongcheol Kim |Minho Kim |Jaehak Chung

1. IntroductionOne goal of 6G is to provide underwater wireless communications to global coverage [1]. Sound waves are considered the best carrier for underwater wireless communication [2,3,4]. Underwater acoustic (UWA) channels for 6G are characterized by frequency-selective fading due to the limited channel bandwidth, long transmission delay, and multipath [5].