Title :
A Method for Broadband Full-Duplex MIMO Radio
Author :
Yingbo Hua ; Ping Liang ; Yiming Ma ; Cirik, Ali Cagatay ; Qian Gao
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Riverside, CA, USA
Abstract :
We present a time-domain transmit beamforming (TDTB) method for self-interference cancelation (SIC) at the radio frequency (RF) frontend of the receivers on broadband full-duplex MIMO radios. It is shown that the conventional frequency-domain transmit beamforming (FDTB) method along with the orthogonal frequency division multiplexing (OFDM) framework does not generally perform SIC in the prefix region of a transmitted frame. A hardware based test of the TDTB method shows a 50 dB SIC over a bandwidth of 30 MHz.
Keywords :
MIMO communication; OFDM modulation; array signal processing; broadband networks; frequency-domain analysis; interference suppression; radio receivers; radiofrequency interference; time-domain analysis; FDTB method; OFDM; RF frontend; SIC; TDTB method; bandwidth 30 MHz; broadband full-duplex MIMO radio; frequency-domain transmit beamforming method; gain 50 dB; orthogonal frequency division multiplexing; radio receiver; radiofrequency frontend; self-interference cancelation; time-domain transmit beamforming method; Array signal processing; Generators; Radio frequency; Receiving antennas; Silicon carbide; Transmitting antennas; Full-duplex radar; full-duplex wireless communication; single channel full-duplex;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2012.2221710
