MRC with decision-feedback equalization for MIMO system over frequency selective channel

Author

Ding, Pengfei ; Li, Jianjun ; Kim, Sungjin

Author_Institution

Samsung Adv. Inst. of Technol., Beijing, China

Volume

3

fYear

2003

fDate

7-10 Sept. 2003

Firstpage

2915

Abstract

MIMO antenna systems can improve the performance and the bandwidth efficiency of a wireless communication system greatly, but the existence of the inter symbol interference (ISI) strongly limits its performance over frequency selective (FS) channels. In this paper, a new equalization algorithm, maximum ration combining with decision-feedback equalization (or MRC-DFE shortly), is proposed for MIMO system over FS channels, which combines all the symbol energy scattered in the time domain based on MRC. Simulation results demonstrate MRC-DFE algorithm greatly improve the performance of MIMO system over FS channels and has better performance than MIMO-DFE based MMSE. Moreover, It has another advantage that any other detection method for MIMO system can be combined with it to improve the performance of MIMO system over FS channels.

Keywords

antenna arrays; decision feedback equalisers; intersymbol interference; least mean squares methods; radio networks; ISI; MIMO antenna systems; MMSE; MRC; bandwidth efficiency; decision-feedback equalization; frequency selective channel; inter symbol interference; maximum ration combining; minimum mean square error methods; time domain; wireless communication system; Bandwidth; Decision feedback equalizers; Diversity reception; Fading; Frequency; MIMO; Receiving antennas; Scattering; Transmitting antennas; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on

Print_ISBN

0-7803-7822-9

Type

conf

DOI

10.1109/PIMRC.2003.1259283

Filename

1259283