Design of ICI Canceling Codes for OFDM Systems Based on Capacity Maximization

Author

Yun, Jae Yeun ; Chung, Sae-Young ; Lee, Yong H.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon

Volume

14

Issue

3

fYear

2007

fDate

3/1/2007 12:00:00 AM

Firstpage

169

Lastpage

172

Abstract

Rate-t/k (tlesk) intercarrier interference (ICI) canceling codes for orthogonal frequency division multiplexing (OFDM) systems are proposed. The capacity lower bounds of OFDM systems employing these codes are derived for time-varying frequency-selective channels. The optimal codes maximizing these bounds are designed numerically. The simulation results indicate that the optimal codes can provide both higher capacity lower bounds and lower bit error rates (BERs) than the existing ICI canceling codes

Keywords

OFDM modulation; adjacent channel interference; channel capacity; channel coding; error statistics; intercarrier interference; interference suppression; optimisation; time-varying channels; ICI canceling code; OFDM; bit error rate; capacity maximization; frequency-selective channel; intercarrier interference; orthogonal frequency division multiplexing system; time-varying channel; AWGN; Bit error rate; Discrete Fourier transforms; Interference cancellation; Maximum likelihood estimation; Numerical simulation; OFDM; Partial response channels; Time domain analysis; Time varying systems; Capacity; intercarrier interference (ICI); orthogonal frequency division multiplexing (OFDM); time-varying channel;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2006.884035

Filename

4100658