Dversity acquisition from inter-carrier interference in the frequency division based mobile communication

Author

Mkrtchyan, Gagik ; Naito, Katsuhiro ; Mori, Kazuo ; Kobayashi, Hideo

Author_Institution

Dept. of Electr. & Electron. Eng., Mie Univ., Japan

fYear

2005

fDate

13-16 Dec. 2005

Firstpage

605

Lastpage

608

Abstract

This paper describes how to achieve a frequency diversity gain from ICI (inter-carrier interference) in the FDM (frequency division multiplexing) based communication. If in the OFDM (orthogonal FDM) the CP (cyclic prefix) is not employed then propagated through the multipath-fading channel subcarriers are not more orthogonal, and in the receiver side along with the ISI (inter-symbol interference) appears also the ICI, which is especially strong in the high mobility case. It was believed that ICI is always the degradation factor, but we show that actually can be got advantage from it. The performance of the proposed scheme was compared with conventional OFDM, and results of computer simulation show that it provides from 10 to 50 times lower BER (bit error rate).

Keywords

OFDM modulation; diversity reception; error statistics; fading channels; intersymbol interference; mobile communication; multipath channels; BER; OFDM; bit error rate; diversity acquisition; frequency diversity gain; frequency division multiplexing; intercarrier interference; intersymbol interference; mobile communication; multipath-fading channel subcarriers; Bit error rate; Degradation; Diversity methods; Frequency conversion; Frequency diversity; Frequency division multiplexing; Interference; Maximum likelihood estimation; Mobile communication; Optical propagation;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Signal Processing and Communication Systems, 2005. ISPACS 2005. Proceedings of 2005 International Symposium on

Print_ISBN

0-7803-9266-3

Type

conf

DOI

10.1109/ISPACS.2005.1595482

Filename

1595482