A new multiplex-access scheme based on the diversity of autocorrelation

Author

Song, Liang ; Hu, Bo ; Liu, Rueywen ; Ling, Xie-Ting

Author_Institution

Dept. of Electr. Eng., Fudan Univ., Shanghai, China

Volume

1

fYear

2003

fDate

11-15 May 2003

Firstpage

720

Abstract

Based on a new diversity, the diversity of autocorrelation, a new multiple-access scheme, called A-CDMA, is presented here. Like WCDMA, it packs high-density information into transmitted signals. Unlike WCDMA, it can block all the ISI and MAI completely under all noise level. The simulation supports the theory and shows that the total interference due to ISI and MAI is reduced to 1% when SNR varies from 1 to 11. By comparison, it outperforms WCDMA by a factor of 9 in the reduction of ISI and MAI. Its overall performance, as measured by BER is better than WCDMA in general, and by 10-20 dB when SNR ranges from 9 dB to 11 dB.

Keywords

code division multiple access; correlation methods; interference suppression; intersymbol interference; radio networks; radiofrequency interference; A-CDMA; BER; ISI; SNR; autocorrelation diversity; autocorrelation domain based CDMA; multiple access interference; noise level; transmitted signal; Autocorrelation; Bandwidth; Fading; Intersymbol interference; Multiaccess communication; Multipath channels; Multiple access interference; Multiuser detection; Noise level; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2003. ICC '03. IEEE International Conference on

Print_ISBN

0-7803-7802-4

Type

conf

DOI

10.1109/ICC.2003.1204268

Filename

1204268