用于降低峰均功率比的网格修剪
Trellis Pruning for Peak-to-Average Power Ratio Reduction
摘要：
本文提出了一种新的网格修剪方法，该方法使用非线性卷积编码来降低滤波QPSK和16-QAM调制的峰均功率比（PAPR）。奈奎斯特滤波器被视为直接控制滤波器输出的模拟波形的卷积编码器。修剪编码器网格的一些边缘可以有效地降低PAPR。唯一的折衷是稍低的信道容量和增加的复杂性。本文给出了修剪行为和由此产生的PAPR的仿真结果，并讨论了滤波和修剪的QPSK和16-QAM调制在AWGN信道上的解码算法和容量。仿真结果表明，该方法在不影响系统容量的前提下，有效地降低了系统的峰均比。
英文摘要：
This paper introduces a new trellis pruning method which uses nonlinear convolutional coding for peak-to-average power ratio (PAPR) reduction of filtered QPSK and 16-QAM modulations. The Nyquist filter is viewed as a convolutional encoder that controls the analog waveforms of the filter output directly. Pruning some edges of the encoder trellis can effectively reduce the PAPR. The only tradeoff is a slightly lower channel capacity and increased complexity. The paper presents simulation results of the pruning action and the resulting PAPR, and also discusses the decoding algorithm and the capacity of the filtered and pruned QPSK and 16-QAM modulations on the AWGN channel. Simulation results show that the pruning method reduces the PAPR significantly without much damage to capacity.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
