Title :
FPGA digital down converter IP for SDR terminals
Author :
Girau, G. ; Martina, M. ; Molino, A. ; Terreno, A. ; Vacca, F.
Author_Institution :
CERCOM (Center for Multimedia Radio Commun.), Politecnico di Torino, Italy
Abstract :
During the past years, software platforms have proved a superior scalability with respect to hardware solutions. However, wireless communication rates can not be faced resorting only to software. Software defined radio paradigm will try to push reconfigurable blocks as near as possible to the antenna. The first block suitable in this implementation is the digital down converter, needed to adapt higher antenna´s data rate to intermediate frequency ones. In this paper a fully reconfigurable IP of a cascaded integrator comb (CIC) filter, an economical class of multiplier-less filters, is proposed. FPGA implementation has lead to very satisfactory results: 135 MHz on a XCV100E.
Keywords :
cascade networks; cellular radio; comb filters; digital filters; field programmable gate arrays; frequency convertors; integrating circuits; software radio; transport protocols; 135 MHz; CIC filter; FPGA digital down converter IP; FPGA implementation; GSM; SDR terminals; XCV100E; antenna data rate; cascaded integrator comb; hardware solutions; intermediate frequency; multiplierless filters; reconfigurable IP; reconfigurable blocks; software defined radio paradigm; software platforms; wireless communication rates; Computer architecture; Field programmable gate arrays; Filters; GSM; Multimedia communication; Radio communication; Receivers; Scalability; Software radio; Streaming media;
Conference_Titel :
Signals, Systems and Computers, 2002. Conference Record of the Thirty-Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7576-9
DOI :
10.1109/ACSSC.2002.1196936
