01324nas a2200217   4500000000100000008004100001653002900042653002500071653002700096653001300123653002200136653002700158100001900185700002200204700002100226700001900247245011400266300001200380490000700392520070700399       2024                            d10aunderwater communication10aapplication protocol10acommunication protocol10asecurity10apublish-subscribe10amilitary communication1 aRiccardo Brama1 aDenis Giambarrasi1 aNicklas Andersen1 aPertti Arvonen00aA Proposal for a Cross-Layer, P+S Approach in Underwater Communication: The Underwater Data Exchange Protocol  a165-1820 v553 a<p>Communication in underwater environments is extremely challenging: bandwidth limitation, latency, and extreme packet losses are only the tip of the iceberg. Usually, just a few bytes can be conveyed, and due to the lack of common standards in the physical layer, the problem becomes even more complex. An accurate network architecture, aiming to maximize message portability in different networking scenarios while supporting significantly different transportation and physical layers, becomes mandatory. Thus, a cross-layer approach is proposed, moving some networking and transport details to the application layer while leveraging the publish-subscribe pattern to limit shared resource usage.</p>