Title :
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
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;
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
DOI :
10.1109/GLOCOM.2007.759
