Title :
DEMIURGO, an SDR Testbed for Distributed MIMO
Author :
Burgos, Juan Manuel Váizquez ; Gago-Cerezal, Efrein ; Gracia, Valentin Alonso ; Cervera, Luis M Campoy
Abstract :
The DEMIURGO testbed allows the test and characterization of distributed MIMO links, in an scenario comprising up to 4 terminals times 4 antennas, in an effective and flexible way. This testbed is based on an already operational Telefonica Moviles SDR Platform (PRAGA), which includes a reprogrammable digital signal processing module based on FPGAs and DSPs, to enable flexible implementation of algorithms, and an analog IF front-end with RF modules. In this paper, the advantages and drawbacks of distributed MIMO implementation on a cellular operator network will be analyzed, and the influence of main limiting factors on the performance of the overall BER in a 4times4 multi-user/multi-antenna systems will be presented.
Keywords :
3G mobile communication; MIMO communication; OFDM modulation; digital signal processing chips; field programmable gate arrays; programmable circuits; DEMIURGO; DSP; FPGA; RF modules; SDR testbed; Telefonica Moviles SDR platform; analog IF front-end; cellular operator network; distributed MIMO links; multi-user/multi-antenna systems; reprogrammable digital signal processing; Bit error rate; Cellular networks; Digital signal processing; Field programmable gate arrays; Limiting; MIMO; Performance analysis; Radio frequency; Signal processing algorithms; Testing; B3G; Distributed MIMO; MIMO; OFDM; SDMA; SDR;
Conference_Titel :
Wireless Communication Systems, 2006. ISWCS '06. 3rd International Symposium on
Conference_Location :
Valencia
Print_ISBN :
978-1-4244-0398-1
Electronic_ISBN :
978-1-4244-0398-1
DOI :
10.1109/ISWCS.2006.4362289
