In May 2025, theNetworkingChannel brought together a panel of leading researchers for a deep technical discussion on underwater communications and networks . Organised by Marco Ajmone Marsan of IMDEA Networks Institute and Politecnico di Torino, the webinar explored how connectivity can be extended into one of the most challenging environments on Earth, the underwater domain. The session highlighted not only how far the field has progressed, but also why underwater networking remains fundamentally different from the terrestrial and satellite systems that dominate today’s connectivity landscape. The discussion opened by setting the context for underwater communications as an enabling technology for ocean observation, industrial operations and autonomous systems. From seabed sensors and autonomous underwater vehicles to surface buoys and gateways linking back to shore, the vision is of a heterogeneous network that spans the seabed, the water column and the surface. Cabled connection...
Wi-Fi HaLow is emerging as an important technology for large scale Internet of Things deployments that require long range, energy efficient, and IP native connectivity. Built on the IEEE 802.11ah standard, Wi-Fi HaLow extends Wi-Fi into sub-1 GHz spectrum, typically between 850 and 950 MHz depending on the regulatory domain. Operating well below the traditional 2.4, 5 and 6 GHz Wi-Fi bands allows it to support significantly greater range and better penetration through walls, floors and outdoor obstacles, which makes it well suited to industrial environments, logistics facilities, campuses, utilities and extended coverage smart home scenarios. Where conventional Wi-Fi standards such as Wi-Fi 6 and Wi-Fi 7 are optimised for very high throughput and multi-gigabit applications, Wi-Fi HaLow is targeted at low to moderate data rate IoT workloads. These include telemetry, control, monitoring, and in some cases transmission of images or video streams where bandwidth requirements are modest ra...