A STUDY ON DETERMINING THE REFERENCE SPREADING SEQUENCES FOR A DS/CDMACOMMUNICATION SYSTEM

Autor: Cebrail ÇİFTLİKLİ, İbrahim DEVELİ
Jazyk: English<br />Turkish
Rok vydání: 2002
Předmět:
Zdroj: Pamukkale University Journal of Engineering Sciences, Vol 8, Iss 2, Pp 161-166 (2002)
Druh dokumentu: article
ISSN: 1300-7009
2147-5881
Popis: In a direct sequence/code division multiple access (DS/CDMA) system, the role of the spreading sequences (codes) is crucial since the multiple access interference (MAI) is the main performance limitation. In this study, we propose an accurate criterion which enables the determination of the reference spreading codes which yield lower bit error rates (BER's) in a given code set for a DS/CDMA system using despreading sequences weighted by stepping chip waveforms. The numerical results show that the spreading codes determined by the proposed criterion are the most suitable codes for using as references.
Databáze: Directory of Open Access Journals