Spectrum Sharing Radar: Coexistence via Xampling
  This paper presents a spectrum sharing technology enabling interference-free operation of a surveillance radar and communication transmissions over a common spectrum. A cognitive radio receiver senses the spectrum using low sampling and processing rates. The radar is a cognitive system that employs a Xampling-based receiver and transmits in several narrow bands. Our main contribution is the alliance of two previous ideas, CRo and cognitive radar (CRr), and their adaptation to solve the spectrum sharing problem. 
Deborah Cohen, Kumar Vijay Mishra and Yonina C. Eldar
cs.IT math.IT