Effect of Hysteresis-based Simple Negative Feedback A/D Conversion on Channel Estimation for Single Carrier Modulation

Tomoya Kageyama, Daisuke Kanemoto, Oruto Endo, Makoto Ohki, Osamu Muta
2020 IEICE Communications Express  
In wireless communication systems, simplification of the receiver circuits is an important issue. In particular, an analog-to-digital converter (ADC) is one of the most important circuit blocks. To deal with this issue, a low-resolution ADC utilizing hysteresis-based simple negative feedback (SNF) technique (hysteresis-based SNF-ADC) was proposed to mitigate nonlinear distortion. In this article, we investigate a recursive channel estimation technique for single carrier modulation with one-bit
more » ... esolution hysteresis-based SNF-ADC. Simulation results clarify that the channel estimation accuracy is improved by using hysteresis-based SNF-ADC and bit error rate (BER) performance is improved compared to cases with only a comparator.
doi:10.1587/comex.2020xbl0029 fatcat:gnmlj4vzwfcwhc7uwnwiokde3m