An Efficient Cyclic Prefix Reconstruction Technique for MIMO Single-Carrier Frequency-Domain Equalization

Author

Kim, Min-Sung ; Lim, Jong-Bu ; Park, Seung-Yong ; Im, Gi-Hong

Author_Institution

Dept. of Electron. & Electr. Eng., Pohang Univ. of Sci. & Technol.

Volume

11

Issue

4

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

316

Lastpage

318

Abstract

In this letter, an efficient cyclic prefix reconstruction (CPR) technique with turbo equalization is developed for a multi-input multi-output (MIMO) single-carrier frequency-domain equalization (SC-FDE) system. The proposed method consists of pre-processing estimation (PPE) and residual inter-carrier interference suppression (RICIS). The PPE is employed to compute initial values of MIMO turbo equalization, and the RICIS is used to mitigate residual intercarrier interference (ICI) after each iteration of the CPR. By applying the proposed method to MIMO SC-FDE system with insufficient cyclic prefix (CP), we can significantly improve its error performance, obtaining both the benefits of multiplexing gain and spectral efficiency gain

Keywords

MIMO communication; equalisers; frequency-domain analysis; intercarrier interference; interference suppression; CPR technique; MIMO turbo equalization; PPE; RICIS; SC-FDE system; cyclic prefix reconstruction; multiplexing gain; preprocessing estimation; residual intercarrier interference suppression; single-carrier frequency-domain equalization; spectral efficiency gain; Computer errors; Decoding; Interference elimination; Interference suppression; MIMO; Nonlinear distortion; OFDM; Performance gain; Space technology; Wireless communication;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOM.2007.348286

Filename

4155628