| Authors |
A. Isozaki, T. Yamazato, S. Lu, M. Saito |
| Title |
Low-Power Receiver Design with a Noise Enhanced 1-bit ADC and Signal Constellation Rearrangement for 16-QAM Transmitters |
| Authority |
IEEE Global Communications Conference (GLOBECOM) , pp.4370-4375 |
| Summary |
This paper proposes a transmitter that rearranges the 16-QAM constellation for a 1-bit ADC receiver. A 1-bit ADC receiver is more eco-friendly and lower-cost than receivers with a high-resolution ADC. However, in conventional 1-bit ADC receivers, severe degradation of SER (Symbol Error Rate) in high Es/N0 poses a critical problem. This degradation is due to the lack of noise power in high Es/N0, which prevents the receiver from sufficiently benefiting from stochastic resonance. To solve this issue, we propose a novel transmitter that rearranges a 16-QAM constellation based on the probability density function of noise. The rearrangement of constellations mitigates the nonlinearity of a 1-bit ADC, enabling reliable demodulation of multilevel signals in high Es/N0. Numerical examples demonstrate that the proposed transmitter achieves good SER performance across a wide range of Es/N0, even when a 1-bit ADC receiver is employed, compared to conventional transmitters. |
| 年月 |
2024年12月 |
| DOI/Handle |
DOI:10.1109/GLOBECOM52923.2024.10901412
|
| 開催場所 |
Capetown, South Africa |
| 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) |
