A modem design for underwater acoustic networking in the high northA modem design for underwater acoustic networking in the high north Πλήρης Δημοσίευση σε Συνέδριο Conference Full Paper 2019-05-312018enWe design a software modem for long range underwater acousticcommunications in ice-covered oceans. The modem is equipped with three coded modulation schemes achieving 1.8, 21.4 and 96.2 bps, respectively. In addition, we design a new large-scale underwater channel simulator and test the modem performance in the underwater environment of Baffin Bay. Our analysis shows that ranges of more than 200 km can be achieved during summer months provided that the link exploits the ducted sound propagation. During winter months, however, this performance may not be always possible and multiple hops will be needed to cover the same range. The results presented in this work are the basis for the study of adaptive routing solutions for data delivery in multi-hop networks [1].http://creativecommons.org/licenses/by/4.0/4th Underwater Communications and Networking Conference Pelekanakis Konstantinos Green Dale Fountzoulas Ioannis Φουντζουλας Ιωαννης Petroccia Roberto Fioravanti Stefano Alves João Blouin Stephane Institute of Electrical and Electronics Engineers Acoustic wave propagation Modems Adaptive routing Coded modulation Underwater channels