Exact bit-error rate analysis of multirate DS-CDMA schemes

Author

Fan, Mingxi ; Minn, Thit ; Siu, Kai-Yrung

Author_Institution

Massachusetts Inst. of Technol., Cambridge, MA, USA

Volume

2

fYear

2002

fDate

2-5 Sept. 2002

Firstpage

415

Abstract

The exact error probability of multirate schemes in DS-CDMA is computed. In particular, the performance of variable spreading-gain and multi-code transmission methods in both additive Gaussian noise and multipath fading channel models is studied. Conventional matched filtering and a diversity combining RAKE receiver are used at the receiver. Based on our results, we deduce conditions in which the bit-error rate (BER) measurement based on the classical Gaussian approximation is valid. We show that both transmission schemes are comparable under various channel models and signal-to-noise ratio levels.

Keywords

3G mobile communication; AWGN channels; code division multiple access; diversity reception; error statistics; fading channels; filtering theory; matched filters; multipath channels; multiuser channels; radio receivers; spread spectrum communication; AWGN channel; BER measurement; Gaussian approximation; SNR levels; additive Gaussian noise; diversity combining RAKE receiver; exact BER analysis; exact bit-error rate analysis; exact error probability; matched filtering; multi-code transmission method; multipath fading channel model; multirate DS-CDMA; signal-to-noise ratio levels; third generation communication system; transmission schemes; variable spreading-gain method; Additive noise; Bit error rate; Diversity reception; Error probability; Fading; Filtering; Gaussian noise; Matched filters; Multiaccess communication; Multipath channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 2002 IEEE Seventh International Symposium on

Print_ISBN

0-7803-7627-7

Type

conf

DOI

10.1109/ISSSTA.2002.1048575

Filename

1048575