Paper Info
Title
Noise-Aided Demodulation with One-Bit ADC for Quadrature Amplitude Modulated Signals.
Abstract
This paper proposes a new demodulation method using a one-bit analog-to-digital converter (ADC). With one bit resolution, a signal having a multilevel signal, such as a quadrature amplitude modulated (QAM) signal, is largely degraded by nonlinearity. To demodulate the signals, a high-resolution ADC is used to receive the signals with high linearity. This study sets out to demodulate the QAM signals using a one-bit ADC, whose resolution is the lowest (one-bit) and possesses outputs of binary (nonlinear) values. We propose to solve the issue by focusing on the statistical characteristics of the output signals of the one-bit ADC combined with noise. The proposed demodulation method is based on maximum a posteriori (MAP) criterion. The theoretical analysis presented illustrates that reliable demodulation is possible even with the one-bit ADC, provided the output probability of the ADC corresponds to each transmitted symbol is known.
Year
DOI
Venue
2018
10.1109/GLOCOM.2018.8648114
IEEE Global Communications Conference
Keywords
Field
DocType
stochastic resonance,nonlinear,noise,QAM,demodulation,one-bit analog-to-digital converter
Demodulation,Nonlinear system,Computer science,QAM,Linearity,Algorithm,Real-time computing,Maximum a posteriori estimation,Quadrature (mathematics),Amplitude,Binary number
Conference
ISSN
Citations 
PageRank 
2334-0983
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Yasuo Nakashima101.01
takaya yamazato223945.32
Shintaro Arai39514.09
Hiroya Tanaka45118.12
Yukihiro Tadokoro5148.14