Title :
A SC-FDE scheme adopting frequency-domain QR decomposition in MIMO system
Author :
Shu-hui, Liu ; Yong-yu, Chang ; Yang, Yang ; Yan-long, Wang ; Da-cheng, Yang
Author_Institution :
Wireless Theor. & Technol. Lab., BUPT, Beijing, China
Abstract :
In this paper, a novel effective low-complexity single carrier frequency-domain equalization SC-FDE scheme in multiple-input multiple-output (MIMO) system is introduced under frequency selective channel. It contains the advantages of SC-FDE and the complexity decreasing in MMSE algorithm by frequency-domain QR (FD-QR) decomposition. Also a rearrangement is implemented according to signal to noise (SNR). So performance gain can be obtained from rearrangement, demodulation after detection and equalization on specific antenna. Simulation result shows that the proposed scheme can obtain a significant performance gain to the conventional MMSE algorithm.
Keywords :
MIMO communication; equalisers; frequency-domain analysis; least mean squares methods; wireless channels; MIMO system; MMSE algorithm; SC-FDE scheme; antenna equalization; frequency selective channel; frequency-domain QR decomposition; low-complexity single carrier frequency-domain equalization; multiple-input multiple-output system; rearrangement demodulation; Digital signal processing; Frequency domain analysis; MIMO; Matrix decomposition; OFDM; Performance gain; Receiving antennas; Signal processing algorithms; Transmitters; Transmitting antennas; FD-QR decomposition; MIMO; MMSE; SC-FDE;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5122-7
Electronic_ISBN :
978-1-4244-5123-4
DOI :
10.1109/PIMRC.2009.5449829
