DARPA Interference Multiple Access (DIMA) Communications
Abstract
(U) The DARPA Interference Multiple Access (DIMA) Communications program developed a networked radio system that supports voice, video and data. The program developed a network that is dynamically controllable using techniques such as reconfiguration, optimum resource allocations based on mission priorities, and dynamic policies, as opposed to relatively passive reactions to changes by the commercial infrastructure. This program initially developed direct sequence spread spectrum (DSSS) communications technologies as a building block to enable robust, mobile, tactical wireless networks, which are the foundation for network centric warfare concepts. The fundamental technical challenges are scalability, multi-user detection processing, low probability of detection/low probability of interception (LPD/LPI), robustness and platform size, weight and power (SWAP) requirements. The DIMA Communications program then developed and demonstrated a system based on multi-user detection (MUD) concepts that take advantage of overloaded channels while operating in an environment absent of infrastructure (ad-hoc networked). The technologies developed under this program are transitioning to the Army and USMC.
Document Details
- Document Type
- Accomplishment
- Publication Date
- Oct 01, 2011
- Source ID
- 6ee97a79d735401a9308b0ea3511717e