| Authors |
Y. Nakashima, T. Yamazato, S. Arai, H. Tanaka, Y. Tadokoro |
| Title |
Noise-aided Demodulation with One-bit ADC for Quadrature Amplitude Modulated Signals |
| Authority |
IEEE Global Communications Conference (GLOBECOM) |
| Summary |
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. |
| 年月 |
2018年12月 |
| DOI/Handle |
DOI:10.1109/GLOCOM.2018.8648114
|
| 開催場所 |
Abu Dhabi, UAE |
| 研究テーマ |
確率共鳴
|
| 言語 |
英語 |
| 原稿/プレゼン資料 |
 /  (ローカル限定) |
