Journals / Mühendislik Bilimleri Dergisi / 2002 / Cilt: 8 - Sayı: 2

Bir doğrudan dizili/kod bölmeli çoklu erişim haberleşme sistemi için dayanak yayma dizilerinin belirlenmesi üzerine çalışma

A study on determining the reference spreading sequences for a DS/CDMA communication system

Pages
161–166
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The numerical results show that the spreading codes determined by the proposed criterion are the most suitable codes for using as references.

📌 3 Key Takeaways

🎯
Objective & Hypothesis: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.
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Key Findings & Data: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.
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Conclusion & Impact:The numerical results show that the spreading codes determined by the proposed criterion are the most suitable codes for using as references.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

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.

Özet

Çoklu erişim girişimi, bir doğrudan dizili/kod bölmeli çoklu erişim (DD/KBÇE) sisteminin başarımını sınırlayan temel etkidir ve yayına dizilerinin (kodlarının) bu etki üzerindeki rolü oldukça önemlidir. Bu çalışmada, adım kırmık ağırlıklandırma dalgaformlarıyla ağırlıklandırılmış toparlama dizileri kullanan bir DD/KBÇE sistemi için verilen bir kod seti içerisinde daha düşük bit hata oranları oluşturan dayanak yayma kodlarının belirlenmesine hizmet eden bir kriter önerilmektedir. Nümerik sonuçlar, önerilen kritere göre belirlenen yayma kodlarının, dayanak olarak kullanılmaya en uygun kodlar olduğunu göstermektedir.

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Cite This Article

ÇİFTLİKLİ, C., DEVELİ, İ. (2002). Bir doğrudan dizili/kod bölmeli çoklu erişim haberleşme sistemi için dayanak yayma dizilerinin belirlenmesi üzerine çalışma. Mühendislik Bilimleri Dergisi, Cilt: 8 - Sayı: 2, 161–166. https://ajindex.com/articles/289272

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References (4)

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