Title :
Prototype experience for MIMO BLAST over third-generation wireless system
Author :
Adjoudani, Ali ; Beck, Eric C. ; Burg, Andreas P. ; Djuknic, Goran M. ; Gvoth, Thomas G. ; Haessig, D. ; Manji, Salim ; Milbrodt, Michelle A. ; Rupp, Markus ; Samardzija, Dragan ; Siegel, Arnold B. ; Sizer, Tod, II ; Tran, C. ; Walker, Susan ; Wilkus, Ste
Author_Institution :
Wireless Res. Lab., Lucent Technol. Bell Labs, Holmdel, NJ, USA
fDate :
4/1/2003 12:00:00 AM
Abstract :
In this paper, a multiple-input-multiple-output (MIMO) extension for a third-generation (3G) wireless system is described. The integration of MIMO concepts within the existing UMTS standard and the associated space-time RAKE receiver are explained. An analysis is followed by a description of an actual experimental MIMO transmitter and receiver architecture, both realized on digital signal processors (DSPs) and FPGAs within a precommercial OneBTS base station. It uses four transmit and four receive antennas to achieve downlink data rates up to 1 Mb/s per user with a spreading factor of 32 and the UMTS chip rate of 3.84 MHz. Furthermore, different MIMO detectors are evaluated, comparing their performance and complexity. System performance is evaluated through simulations and indoor over-the-air measurements. Capacity and bit-error rate measurement results are presented.
Keywords :
3G mobile communication; MIMO systems; antenna arrays; digital signal processing chips; error statistics; field programmable gate arrays; radio receivers; radio transmitters; receiving antennas; telecommunication standards; transmitting antennas; 3G wireless system; BER measurement results; DSP; FPGA; MIMO BLAST; MIMO detectors; MIMO receiver architecture; MIMO transmitter architecture; OneBTS base station; UMTS chip rate; UMTS standard; bit-error rate measurement results; capacity measurement results; digital signal processors; downlink data rates; indoor over-the-air measurements; multiple-input-multiple-output; receive antennas; simulations; space-time RAKE receiver; spreading factor; system performance; third-generation wireless system; transmit antennas; 3G mobile communication; Digital signal processors; Fading; MIMO; Multipath channels; Prototypes; RAKE receivers; Semiconductor device measurement; Signal analysis; Transmitters;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
DOI :
10.1109/JSAC.2003.809724
