Sub Carrier Analysis for QAM Modulation | Zendy

Shobana Shanmugasundaram | Zendy

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Sub Carrier Analysis for QAM Modulation

Author(s) -

Shobana Shanmugasundaram

Publication year - 2017

Publication title -

bulletin of electrical engineering and informatics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.251

H-Index - 12

ISSN - 2302-9285

DOI - 10.11591/eei.v6i4.866

Subject(s) - quadrature amplitude modulation , orthogonal frequency division multiplexing , analog transmission , qam , modulation (music) , electronic engineering , pulse amplitude modulation , computer science , signal (programming language) , transmission (telecommunications) , amplitude modulation , decoding methods , frequency modulation , telecommunications , analog signal , engineering , channel (broadcasting) , physics , bandwidth (computing) , bit error rate , acoustics , detector , pulse (music) , programming language

Orthogonal Frequency Division Multiplexing (OFDM) based wireless data transmission system is a multi-carrier system in which single higher rate data stream can be divided into multiple lower rate data streams. Modulation and De-Modulation technique play a major role in OFDM based data transmission system. Based on Modulation technique only, the frequency transformation method and encoding and decoding methods are enabled. E ffective modulation techniques called as “Quadrature Amplitude Modulation (QAM)” modulation are used to design an OFDM System. Carrier signal is one of the important signals used to modulate the original signal. Analyzing the sub-carrier signal for getting the quality of the modulated signal.

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