Performance comparison between Q-CDMA and chaotic spreading spectrum CDMA communication system over Saleh indoor channel

Author

Wang, Lin ; Wei, Mu ; Zhang, Hongyu ; Yu, Juebang

Author_Institution

Dept. of Optoelectron. Tech., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2000

fDate

2000

Firstpage

300

Lastpage

303

Abstract

To evaluate the performance of some popular pseudo-random spreading spectrum sequences, the Logistic Chaotic Spreading Spectrum (LCSS) sequence and m-sequence used in the Q-CDMA system complying with IS-95 protocol are comparatively studied in this paper. The study is based on the concept of aperiodic partial correlation function and conducted on a specific indoor channel by using the Saleh model. The computer simulation platform consists of Sun Ultra Spare 60 workstation together with the Cadence SPW package. It is found that not only the statistical characteristics of LCSS are better than that of the m-sequence, but also its bit error rate (BER) is lower than that of the m-sequence. Our observation of interest for the application of chaotic spreading spectrum sequence in both the Q(Qualcomm)-CDMA and 3GM systems

Keywords

Monte Carlo methods; binary sequences; chaos; code division multiple access; correlation theory; digital radio; digital simulation; error statistics; indoor radio; m-sequences; spread spectrum communication; telecommunication channels; telecommunication computing; 3GM system; BER; Cadence SPW package; IS-95 protocol; Q-CDMA system; Qualcomm-CDMA; Saleh indoor channel; Sun Ultra Spare 60 workstation; aperiodic partial correlation function; bit error rate; chaotic spread spectrum CDMA; computer simulation platform; logistic chaotic spread spectrum sequence; m-sequence; performance comparison; pseudo-random spread spectrum sequences; statistical characteristics; Bit error rate; Cascading style sheets; Chaotic communication; Computer simulation; Logistics; Multiaccess communication; Multiple access interference; Statistics; Sun; Telecommunication computing;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2000. IEEE APCCAS 2000. The 2000 IEEE Asia-Pacific Conference on

Conference_Location

Tianjin

Print_ISBN

0-7803-6253-5

Type

conf

DOI

10.1109/APCCAS.2000.913493

Filename

913493