Detect and Avoid (DAA) Mechanisms for UWB Interference Mitigation

Worldwide ultra-wideband (UWB) radio regulations are slowly taking shape, and are reaching the final stages of work. The main reasons for the continued debate has of course been the potential interference that can be caused by UWB radios to other radios with which they would share the spectrum. Specifically for the case of broadband wireless access (BWA) systems serving indoor subscriber stations (SS), it has been proposed to impose a requirement that UWB systems should detect and avoid interference to the downlinks of such BWA SS. In this paper we discuss some of the aspects of such solutions, and present some results and description of the ongoing work in this area