Experiences with JANUS and efforts towards a common heavy-duty underwater communication stack

摘要

A new European Defence Agency (EDA) project is currently being set up, called SALSA, in which five European nations are working towards a common underwater communication stack for heavy-duty purposes, i.e., a rugged protocol stack that can serve as the future communication backbone for naval operations involving autonomous underwater vehicles (AUV) and bottom nodes. The emerging NATO standard JANUS is envisioned as first-contact protocol in the SALSA stack, enabling ad-hoc extensions of the underwater network such as in-mission upscaling of the number of AUVs in joint operations. In this context, the JANUS modulation has been tested at sea for several communication ranges and Doppler shifts, comparing its performance with the candidate physical-layer protocol of the SALSA stack.