On the performance of MSOVA for UMTS and cdma2000 turbo codes

مقدم أطروحة جامعية

Musif, Hani Hashim

مشرف أطروحة جامعية

Ghanim, Wasil

أعضاء اللجنة

al-Kafri, Wasfi
Salih, Muhammad

الجامعة

جامعة بيرزيت

الكلية

كلية الهندسة و التكنولوجيا

القسم الأكاديمي

دائرة علم الحاسوب

دولة الجامعة

فلسطين (الضفة الغربية)

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2007

الملخص الإنجليزي

Turbo codes are one of the most important channel coding schemes because of its excellent performance that approaches Shannon limit.

So it is adopted by most of the modern digital communication systems.

These codes are either a parallel or serial concatenation of two or more convolutional encoders separated by interleaves.

There are two main decoding algorithms for turbo codes ; the MAP and SOVA algorithms.

The MAP algorithm has a very good performance but with large complexity, while the SOVA algorithm is simpler but with worse performance.

So many medications appeared for both algorithms.

Recently, a medication to the conventional SOVA algorithm called Modeled SOVA or MSOVA was proposed, which suggests adding two scaling factors to the output of the conventional SOVA decoder.

In this research, the performance of the MSOVA decoding algorithmic studied for the turbo codes used by the two third generation cellular standards; UMTS and cdma2000, where the best values of the two scaling factors of the MSOVA algorithm suitable for these turbo codes are found.

التخصصات الرئيسية

هندسة الاتصالات

الموضوعات

• برمجيات الحاسوب

عدد الصفحات

63

قائمة المحتويات

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-303493