Defense Advanced Research Projects AgencyTagged Content List

Network Technology

Relating to nodes in a connected architecture

Showing 37 results for Networking + News RSS
The DARPA Bay Area Software Defined Radio (SDR) Hackfest came to a close on Friday, November 17 at the NASA Ames Conference Center in Moffett Field, CA. During the weeklong event, over 150 members of the SDR community came together to discuss, innovate, and ideate around the future of software radio technology and its potential to address challenging communications issues that are emerging due to the increasingly congested electromagnetic (EM) spectrum and the proliferation of wireless-enabled devices.
DARPA’s Collaborative Operations in Denied Environment (CODE) program aims to extend the capability of the U.S. military’s existing unmanned aircraft systems (UASs) to conduct dynamic, long-distance engagements of highly mobile ground and maritime targets in contested or denied battlespaces. Multiple CODE-equipped unmanned aircraft would navigate to their destinations and find, track, identify, and engage targets under established rules of engagement—all under the supervision of a single human mission commander.
DARPA is progressing toward its plan to demonstrate airborne launch and recovery of multiple unmanned aerial systems (UASs), targeted for late 2019. Now in its third and final phase, the goal for the Gremlins program is to develop a full-scale technology demonstration featuring the air recovery of multiple low-cost, reusable UASs, or “gremlins.”
Computing performance has steadily increased against the trajectory set by Moore’s Law, and networking performance has accelerated at a similar rate. Despite these connected evolutions in network and server technology however, the network stack, starting with the network interface card (NIC) – or the hardware that bridges the network/server boundary – has not kept pace. Today, network interface hardware is hampering data ingest from the network to processing hardware. Additional factors, such as limitations in server memory technologies, memory copying, poor application design, and competition for shared resources, has resulted in network subsystems that are creating a bottleneck within the network stack and are throttling application throughput.
DARPA's Gremlins program has completed the first flight test of its X-61A vehicle. The test in late November at the U.S. Army’s Dugway Proving Ground in Utah included one captive-carry mission aboard a C-130A and an airborne launch and free flight lasting just over an hour-and-a-half.