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.

Volume

2

fYear

2006

fDate

25-28 June 2006

Firstpage

1112

Lastpage

1116

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICCCAS.2006.284842

Filename

4064083