Читать книгу Dynamic Spectrum Access Decisions - George F. Elmasry - Страница 40

As explained in Chapter 1, DSA involves many factors other than spectrum sensing. When propagating spectrum sensing information to peer nodes or to a centralized location, the geolocations of the sensors must be attached to the spectrum sensing information. This allows a distributed or a centralized DSA process that fuses spectrum sensing information from different sensors to create a comprehensive view of spectrum use (spectrum map) in a given area of operation.¹⁷ This comprehensive view can find each sensed signal's area of coverage (AOC) to create spectrum opportunities based on locations as well as find directional beams that can show more spatial opportunistic use.