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

fYear

2009

fDate

13-16 Sept. 2009

Firstpage

261

Lastpage

265

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/PIMRC.2009.5449829

Filename

5449829