Communications Under Extreme RF Spectrum Conditions (CommEx)*
Abstract
*Formerly Next Generation Communications The Communications Under Extreme RF Spectrum Conditions (CommEx) program will develop signal detection and reasoning technology that will allow radios to recognize jamming attacks and then adapt to maintain communications, even in the presence of cognitive jammer attacks and dynamic interference of multiple cognitive network interactions. The program will develop models of adversary, commercial, and friendly cognitive radios and implement those models in a "reasoner" that assesses, in real time, the current and future dynamics of the communications network. Core technologies for operation in highly dynamic and/or high jamming to signal environments will be developed to include: automated jamming waveform forensics; RF Environment assessment (time, space, frequency, polarization); technologies for addressing known attack strategies and interference properties; and antenna, RF, signal processing, modulation, and network optimization technology. Based on predictions of the level of communication success compared to mission communication requirements, the "reasoner" within the cognitive radio will choose waveform selections/configurations that best achieve mission objectives. The "reasoner" will include the capability to analyze and select optimum waveform configurations during all aspects of a mission, to include initial alert, ingress, mission, and infiltration. The design effort will lead to new radio communication architectures, more robust radio communication networking, and better understanding of selection amongst interference avoidance and interference suppression strategies. This program also seeks to enable communication between dispersed and distributed emitters and receivers to provide a multiplier in capacity for both locating emitters and assessing effectiveness of an electronic attack. In addition to protecting communications from jamming, an analysis of methods to prevent geolocation of communication signals is also planned. The CommEx technology is planned for transition to the U.S. Army.
Document Details
- Document Type
- Accomplishment
- Publication Date
- Oct 01, 2012
- Source ID
- d387cdab0967abd4c3daf4b63892822b