Title :
Improved Interference Cancellation in CDM-FH-OFDMA Systems
Author :
Han, Lu ; Zheng, Kan ; Wang, Wenbo
Author_Institution :
Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun.
Abstract :
In this paper, we propose an improved interference cancellation (IC) scheme for CDM-FH-OFDMA system, which is the extension of frequency-hopping orthogonal frequency division multiplexing access (FH-OFDMA) with code division multiplexing (CDM). Because of the application of CDM, the multi-code interference (MCI) becomes severe and inevitable under dispersive channel condition. In order to mitigate MCI and improve system performance, the receiver with interference cancellation scheme should be applied. Simulation results are presented for turbo coded systems and proved that the improved IC scheme can achieve much better performance
Keywords :
OFDM modulation; code division multiple access; dispersive channels; frequency hop communication; interference suppression; radiofrequency interference; turbo codes; CDM-FH-OFDMA system; MCI; code division multiplexing; dispersive channel; frequency-hopping orthogonal frequency division multiplexing access; interference cancellation; multicode interference; radio receiver; turbo coded system; Code division multiplexing; Dispersion; Fading; Frequency division multiaccess; Interference cancellation; Modulation coding; Multiaccess communication; Multicarrier code division multiple access; OFDM modulation; System performance;
Conference_Titel :
Communications, Circuits and Systems Proceedings, 2006 International Conference on
Conference_Location :
Guilin
Print_ISBN :
0-7803-9584-0
Electronic_ISBN :
0-7803-9585-9
DOI :
10.1109/ICCCAS.2006.284842
