Defense Advanced Research Projects AgencyTagged Content List

Network Technology

Relating to nodes in a connected architecture

Showing 15 results for Networking + Mobile RSS
04/30/2013
Troops operating in forward locations without telecommunication infrastructure often rely on a mobile ad hoc network (MANET) to communicate and share data. The communication devices troops use on foot or in vehicles double as nodes on the mobile network. A constraint with current MANETs is they can only scale to around 50 nodes before network services become ineffective. For the past 20 years, researchers have unsuccessfully used Internet-based concepts in attempts to significantly scale MANETs.
08/21/2013
Squads of Soldiers or Marines on patrol in remote forward locations often don’t have the luxury of quickly sharing current intelligence information and imagery on their mobile devices, because they can’t access a central server. Troops frequently have to wait until they’re back at camp to download the latest updates. In the meantime, mission opportunities may erode because the information needed at the tactical edge isn’t immediately available.
04/07/2014
Missions in remote, forward operating locations often suffer from a lack of connectivity to tactical operation centers and access to valuable intelligence, surveillance, and reconnaissance (ISR) data. The assets needed for long-range, high-bandwidth communications capabilities are often unavailable to lower echelons due to theater-wide mission priorities. DARPA’s Mobile Hotspots program aims to help overcome this challenge by developing a reliable, on-demand capability for establishing long-range, high-capacity reachback that is organic to tactical units. The program is building and demonstrating a scalable, mobile millimeter-wave communications backhaul network mounted on small unmanned aerial vehicles (UAVs) and providing a 1 Gb/s capacity.
03/04/2016
The explosive growth of global digital connectivity has opened new possibilities for designing and conducting social science research. Once limited by practical constraints to experiments involving just a few dozen participants—often university students or other easily available groups—or to correlational studies of large datasets without any opportunity for determining causation, scientists can now engage thousands of diverse volunteers online and explore an expanded range of important topics and questions.
05/03/2017
The physical sphere of computers, home appliances, vehicles, cameras, and the ever-growing menagerie of handheld devices has become increasingly intertwined-by way of wireless connections to the internet-with the digital spheres of data and information. This expanding new technology arena brings with it vast opportunities for innovation, challenging and growing demand for access to the electromagnetic spectrum, and new vulnerabilities to ill-willed interference. Catalyzing interest and awareness in this cyber-physical intersection —and the development of new technology with an eye on both its promise and peril—is what program manager Tom Rondeau hopes his yearlong campaign, known as DARPA Software Defined Radio (SDR) Hackfests, will help to achieve.