Design and performance of multicarrier CDMA system in frequency-selective Rayleigh fading channels

Author

Hara, Shinsuke ; Prasad, Ramjee

Author_Institution

Dept. of Electron., Inf. & Energy Eng., Osaka Univ., Japan

Volume

48

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

1584

Lastpage

1595

Abstract

This paper presents the advantages and disadvantages of a multicarrier code-division multiple-access (MC-CDMA) system. The transmitter/receiver structure and, the bandwidth of transmitted signal spectrum are compared with those of a conventional direct-sequence (DS) CDMA system, and an MC-CDMA design method, how to determine the number of subcarriers and the length of guard interval is discussed. The bit error rate (BER) lower bounds for DS-CDMA and MC-CDMA systems are derived and their equivalence is theoretically demonstrated. Finally, the BER performance in downlink and uplink channels with frequency-selective Rayleigh fading is shown by computer simulation

Keywords

Rayleigh channels; code division multiple access; error statistics; land mobile radio; multiuser channels; radio links; radio receivers; radio transmitters; spread spectrum communication; BER performance; DS-CDMA; MC-CDMA system; bit error rate; code-division multiple-access; computer simulation; direct-sequence CDMA system; downlink channel; frequency-selective Rayleigh fading channels; guard interval length; lower bounds; mobile communications; multicarrier CDMA system; subcarriers; system design; system performance; transmitted signal spectrum bandwidth; transmitter/receiver structure; uplink channel; Bandwidth; Bit error rate; Computer simulation; Design methodology; Downlink; Frequency; Multiaccess communication; Multicarrier code division multiple access; Rayleigh channels; Transmitters;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.790535

Filename

790535