Effect of Inter-Code Interference Cancellation on STFBC-OFDM Under Time and Frequency Selective Fading Environments

Author

Saegusa, Masahiro ; Saba, Takahiko

Author_Institution

Chiba Inst. of Technol., Narashino

fYear

2007

fDate

26-30 Nov. 2007

Firstpage

3995

Lastpage

3999

Abstract

In space-time-frequency block coded orthogonal frequency division multiplexing (STFBC-OFDM), data symbols are encoded over several antennas, several symbol intervals, and several subcarriers. Thus, the influence of inter-code interference (ICI) on STFBC-OFDM is smaller than that on space-time block coded OFDM (STBC-OFDM) under time selective fading and that on space-frequency block coded OFDM (SFBC-OFDM) under frequency selective fading. Nevertheless, STFBC-OFDM suffers from ICI under time and frequency selective fading. In this paper, we investigate the effect of ICI cancellation on an STFBC-OFDM system under the time and frequency selective fading environment. Simulation results show that the performance of the proposed system with ICI cancellation at the fourth iteration is more than 3.5 [dB] better than that of the system without ICI cancellation.

Keywords

OFDM modulation; block codes; fading channels; interference suppression; space-time codes; frequency selective fading environments; intercode interference cancellation; space-time-frequency block coded orthogonal frequency division multiplexing; time selective fading environments; Computer science; Decoding; Degradation; Diversity methods; Electronic mail; Fading; Frequency diversity; Interference cancellation; OFDM; Space technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE

Conference_Location

Washington, DC

Print_ISBN

978-1-4244-1042-2

Electronic_ISBN

978-1-4244-1043-9

Type

conf

DOI

10.1109/GLOCOM.2007.759

Filename

4411669