2021年6月30日 · In this work, we propose to use a neural network (NN) at the transmitter to learn a high-dimensional modulation scheme allowing to control the PAPR and adjacent channel leakage ratio (ACLR). On the receiver side, a NN-based receiver is implemented to carry out demapping of the transmitted bits.

2021年10月21日 · Although most modern systems use orthogonal frequency-division multiplexing (OFDM) for its efficient equalization, this waveform suffers from multiple limitations such as a high adjacent channel leakage ratio (ACLR) and high peak-to-average power ratio (PAPR).

In this work, the increase of adjacent leakage power ratio (ACLR) and error vector magnitude (EVM) are estimated recursively using the detected peak amplitude. We present analytical framework for OFDM-based systems with theoretical bit error rate (BER) representations and detection of optimum peak threshold based on predefined EVM and ACLR ...

OFDM waveform in large-scale multiple-input multiple-output (MIMO) systems. Furthermore, low PAPR of the signals with a digital predistorter or a PA linearizer can improve the PA efficiency by letting PA operate close to its bias point. Numerous techniques to reduce PAPR, also referred to as crest factor reduction, have been proposed in the liter-

In this work, we propose to use a neural network (NN) at the transmitter to learn a high-dimensional modulation scheme allowing to control the PAPR and adjacent channel leakage ratio (ACLR). On the receiver side, an NN-based receiver is …

邻信道泄漏/抑制比(aclr或acpr)是用于衡量发射机线性度的重要参数。以5g 100mhz信号为例，aclr的定义是：信道功率与偏移中心频率100mhz(相邻信道)和200mhz(相隔信道)的功率的比值。

2022年5月30日 · Abstract: Although signal distortion-based peak-to-average power ratio (PAPR) reduction is a feasible candidate for orthogonal frequency division multiplexing (OFDM) to meet standard/regulatory requirements, the error vector magnitude (EVM) stemming from the PAPR reduction has a deleterious impact on the performance of high data-rate achieving ...

We present analytical framework for OFDM-based systems with theoretical bit error rate (BER) representations and detection of optimum peak threshold based on predefined EVM and ACLR...

2013年7月1日 · wcdma aclr限值 信号通过一个根升余弦滤波器（RRC）、3.84MHz带宽与滚降因子（α=0.22）进行传递。 可使3.84MHz频带扩至4.68MHz，每个信道所分配的频带为5MHz。

2021年10月21日 · A learning-based method to design OFDM-based waveforms that satisfy selected constraints while maximizing an achievable information rate is proposed that is able to satisfy target PAPR and ACLR constraints and allows significant throughput gains compared to a tone reservation baseline.