کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6949847 1451376 2018 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Increasing the symbol rate in QAM system using a new set of orthonormal basics functions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر سیستم های اطلاعاتی
پیش نمایش صفحه اول مقاله
Increasing the symbol rate in QAM system using a new set of orthonormal basics functions
چکیده انگلیسی
This paper proposes a new technique to increase the symbol rate in Quadrature Amplitude Modulation (QAM) using a new set of orthonormal functions. The proposed technique increases the rate of QAM symbols without increasing the bandwidth of the modulated signal or increasing the modulation order of the QAM symbol. The set of orthonormal functions consists of four shaped-sinusoidal functions. The shaping functions are Hilbert-Transform pair. The proposed QAM modulator modulates two independent complex symbols in the same time. Each modulated symbol uses two different functions from the proposed set. The paper shows the structure of the modulator and demodulator of the proposed system. The paper presents different shaping pulses, which can be used with the proposed system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electrical Systems and Information Technology - Volume 5, Issue 2, September 2018, Pages 158-174
نویسندگان
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