A Power Efficient Digital Front-End for Cognitive Radio Systems
G.C. Cardarilli, Luca Di Nunzio, Rocco Fazzolari, Alberto Nannarelli, Marco Re · 2018 52nd Asilomar Conference on Signals, Systems, and Computers · 2018
In this paper, we present a power efficient digital front-end for cognitive radio and software-defined radio. The proposed architecture is based on a perfect reconstruction polyphase filter bank able to support a variable number of channels. As an example, we present the implementation of a configurable channelizer working in 8-channels or 4-channels mode. Power efficiency is obtained by switching off the unused resources in the not operating modules. The power saving are estimated through extensive simulations.