Defense Advanced Research Projects AgencyTagged Content List

Communications and Networks

All manner of sending, receiving, connecting and protecting information

Showing 45 results for Communications + Networking RSS
Radios are used for a wide range of tasks, from the most mundane to the most critical of communications, from garage door openers to military operations. As the use of wireless technology proliferates, radios and communication devices often interfere with and disrupt other wireless devices. First responder radios need to be able to communicate reliably in such congested and contested environments and to share radio spectrum without direct coordination or spectrum preplanning.
The Tactical Undersea Network Architectures (TUNA) program seeks to develop and demonstrate novel optical-fiber-based technology options and designs to temporarily restore tactical data network connectivity in a contested environment. TUNA is currently in an initial phase that emphasizes concept and technology development in three technical areas: system design, small fiber optic cable systems, and buoy nodes.
The undersea domain imposes well-known limits on communication and therefore the capacity to transfer the right information necessary to its intended purpose. The TIMEly program aims to develop concepts for a heterogeneous underwater network architecture that enables the vision of mosaic warfare by the contemporaneous composition of effect chains from available assets in any domain, but with an emphasis on the underwater domain in order to provide options for execution on the fly.
The majority of work to develop and mature military wireless networks to date has focused on efficiency and stability in benign conditions. Insufficient attention has been paid to identifying and mitigating vulnerabilities arising from the new features being added to make these networks more efficient. Unfortunately, because of the focus on efficiency, the protocols that have been developed implicitly trust all information shared about the state of the nodes and the larger network. Consequently, when the information that is shared among these nodes is bad, the network quickly becomes unusable.
Program Manager
Dr. Mary R. Schurgot joined DARPA in March 2020 as a program manager in the Strategic Technology Office (STO). Her research interests include secure and efficient data sharing, automated decision aids, and the design of new networking and communication paradigms.