A study on complexity reduction of MIMO-ICI canceller in mobile reception of OFDM

Author

Nakamura, A. ; Ohno, Kizuku ; Itami, Makoto

Author_Institution

Dept. of Appl. Electron., Tokyo Univ. of Sci., Chiba, Japan

fYear

2013

fDate

24-27 June 2013

Firstpage

1

Lastpage

5

Abstract

In the next-generation wireless communication systems, further advance of OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multi-Input Multi-Output) system is required. One of the major problems to be considered is ICI (Inter-Carrier Interference) generated by Doppler-spread under mobile reception of MIMO-OFDM systems. In this situation, reception characteristics are deteriorated significantly. The ICI canceller for MIMO-OFDM with complexity reduction can demodulate transmitted symbols. In order to realize an ICI canceller, it is necessary to reduce the complex calculations such as matrix operations. Therefor, complexity reduction of a MIMO-ICI canceller is proposed. Proposed complexity reduction scheme of a MIMO-ICI canceller can improve the influence of ICI with reduced complexity. The performance of the proposed scheme is evaluated by simulations.

Keywords

Doppler effect; MIMO communication; OFDM modulation; intercarrier interference; interference suppression; mobile radio; Doppler spread; MIMO-ICI canceller; OFDM; complexity reduction; intercarrier interference; mobile reception; multiple input multiple output system; next generation wireless communication system; orthogonal frequency division multiplexing; transmitted symbol demodulation; MIMO; OFDM; Complexity Reduction; ICI; MIMO; OFDM;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Personal Multimedia Communications (WPMC), 2013 16th International Symposium on

Conference_Location

Atlantic City, NJ

ISSN

1347-6890

Type

conf

Filename

6618511