Multicarrier CDMA systems with transmit diversity

Author

Cai, Xiaodong ; Akansu, Ali N.

Author_Institution

Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA

Volume

6

fYear

2000

fDate

2000

Firstpage

2817

Abstract

Transmit diversity was previously proposed to reduce the detrimental effects in fading channels. In this paper we apply the space-time block codes to multicarrier CDMA systems. Our emphasis is on designing receivers that can decode the space-time codes and suppress the multiple access interference. Among the four detecting schemes we propose the minimum mean square error combiner (MM-SEC) give the best tradeoff between performance and complexity. Simulation results show that MC-CDMA systems with transmit diversity have a much better performance than MC-CDMA systems without transmit diversity in multipath fading channels

Keywords

block codes; code division multiple access; decoding; diversity reception; fading channels; interference suppression; land mobile radio; least mean squares methods; multipath channels; multiuser channels; radio receivers; radiofrequency interference; spread spectrum communication; DS-CDMA; complexity; decoding; downlink; minimum mean square error combiner; multicarrier CDMA systems; multipath fading channels; multiple access interference suppression; performance; receiver design; simulation results; space-time block codes; transmit diversity; Block codes; Discrete Fourier transforms; Fading; Multiaccess communication; Multicarrier code division multiple access; Receiving antennas; Signal processing; Space time codes; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd

Conference_Location

Boston, MA

ISSN

1090-3038

Print_ISBN

0-7803-6507-0

Type

conf

DOI

10.1109/VETECF.2000.886831

Filename

886831