A multicarrier CDMA system for combating channel blocking in frequency-selective fading MIMO channel

Author

Fujino, Tadashi ; Nakamura, Junya

Author_Institution

Dept. of Inf. & Commun. Eng., Univ. of Electro-Commun., Tokyo

fYear

2005

fDate

21-21 Dec. 2005

Firstpage

113

Lastpage

118

Abstract

Recently we have proposed a multi-carrier code division multiple access (MC-CDMA) scheme for the downlink of mobile communications to combat the channel blocking in flat fading multi-input single-output (MISO) channels. In this paper, the previous proposal is extended to the case of frequency-selective fading multi-input multi-output (MIMO) channels. An enhanced scheme is also proposed to obtain better bit error rate (BER) performance and to facilitate signal detection. BER performance of the proposed system using different detection methods is evaluated by numerical calculation. Without decreasing time, frequency, and transmit (Tx) power efficiencies, the proposed system allows us to extract all the Tx data with relatively good BER even when channel blocking is encountered

Keywords

code division multiple access; error statistics; fading channels; mobile communication; signal detection; wireless channels; bit error rate; channel blocking; frequency-selective fading MIMO channel; mobile communications; multi-carrier code division multiple access scheme; multicarrier CDMA system; signal detection; Bit error rate; Downlink; Fading; Frequency; MIMO; Mobile communication; Multiaccess communication; Multicarrier code division multiple access; Proposals; Signal detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Information Technology, 2005. Proceedings of the Fifth IEEE International Symposium on

Conference_Location

Athens

Print_ISBN

0-7803-9313-9

Type

conf

DOI

10.1109/ISSPIT.2005.1577080

Filename

1577080