A novel MC DS-CDMA system scheme with high spectral efficiency

Author

Miao, Deshan ; Li, Daoben

Author_Institution

Sch. of Inf. Eng., Beijing Univ. of Posts & Telecommun.

Volume

4

fYear

2006

fDate

3-6 April 2006

Firstpage

2018

Lastpage

2023

Abstract

This paper presents a novel multicarrier DS-CDMA scheme based on the loosely synchronous (LS) codes (D. Li, 1999) which can achieve very high spectral efficiency. Instead single subcarrier modulation in conventional multicarrier DS-CDMA scheme, this novel scheme introduces the non-orthogonal subcarrier-group modulation, whose interferences caused by the non-orthogonal spacing in a subcarrier-group can be reduced by a multi-code detector. We provide the detailed analysis for this system architecture and also give a MIMO multicarrier DS-CDMA solution to satisfy the requirement of beyond 3G mobile communications system. Simulated results demonstrate this scheme can obtain excellent bit error rate (BER) performance, as well as achieve high spectral efficiency

Keywords

3G mobile communication; MIMO systems; code division multiple access; error statistics; modulation; spread spectrum communication; 3G mobile communications system; BER; MC DS-CDMA system scheme; MIMO multicarrier; bit error rate; loosely synchronous codes; multicode detector; nonorthogonal subcarrier-group modulation; Baseband; Bit error rate; Detectors; Filters; MIMO; Modulation coding; Multiaccess communication; Multiple access interference; Radio transmitters; System performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 2006. WCNC 2006. IEEE

Conference_Location

Las Vegas, NV

ISSN

1525-3511

Print_ISBN

1-4244-0269-7

Electronic_ISBN

1525-3511

Type

conf

DOI

10.1109/WCNC.2006.1696606

Filename

1696606