Engineering Challenges of Stationary Wireless Smart Ocean Observation Systems. - Ngoc-Thanh Nguyen 002; Rogardt Heldal; Keila Lima; Tosin Daniel Oyetoyan; Patrizio Pelliccione; Lars Michael Kristensen; Kjetil Waldeland Høydal; Pål Asle Reiersgaard; Yngve Kvinnsland (IEEE Internet Things J., 2023)