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Quadrature Amplitude modulation in wireless sensor environement
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Quadrature ampliltude modulation has high spectral efficiency but is highly sensitive to power amplifier
nonlinearities. It is shown that an adaptive predistorter usig polynomial amplitude and phase
predistortion functions can be used to lineariz
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tA scheme of format conversion optical 16-ary quadrature amplitude modulation (16QAM) toquadrature phase shift keying (QPSK) signal based on cascaded four-wave mixing (FWM) in semiconduc-tor optical amplifiers (SOAs) is proposed. Theoretical analysis
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Quadrature Amplitude Modulation (QAM)
The creation of symbols that are some combination of amplitude and phase can carry the concept of transmitting more bits per symbol further. This method is called quadrature amplitude modulation (QAM). For
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Introduction
This section builds an example step-by-step to give you a first look at the Communications System Toolbox™ software. This section also shows how Communications System Toolbox functionalities build upon the computational and visual
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Introduction
This section builds an example step-by-step to give you a first look at the Communications System Toolbox™ software. This section also shows how Communications System Toolbox functionalities build upon the computational and visual
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analog modulation techniques are:
Amplitude modulation (AM) (here the amplitude of the carrier signal is varied in accordance to the instan eous amplitude of the modulating signal)
Double-sideband modulation (DSB)
Double-sideband modulati
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frequency division multiplexing (OFDM) is used extensively in broadband wired and wireless communication systems because it is an effective solution to intersymbol interference (ISI) caused by a dispersive channel. This becomes increasingly important
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mimo ofdm for multipath fading channels mimo ofdm fo r multipath fading channels - mimo ofdm for multipath fading channels mimo ofdm for multipath fading channels mimo ofdm for multipath fading channels
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Offset Quadrature Amplitude Modulation on Orthogonal Division Multiplexing
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2 Point Quadrature Amplitude Modulation
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Quadrature Amplitude Modulation demodulation
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基于OQAM/PDM CO-OFDM系统提出了一种时域的信道估计方法，可以有效提高估计效率。
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