【摘要】 介绍了几种基于PTS的改进算法,并且在其中一种称为相位因子估计算法的基础上提出了一种新算法,新算法在原方法中引入了预选向量法和快速判断法,以求降低算法的复杂度。通过仿真证明,优化算法与原算法相比复杂度降低了1/2左右,PAPR损失小于0.5dB,表明该优化算法非常适合在子向量数V值较大(一般大于8)的OFDM系统中使用。更多还原

【Abstract】 This paper introduces three new algorithms based on PTS and proposes an optimal algorithm based on a phase factor computation algorithm. The optimal algorithm uses two new techniques that we call vector pre-selection method and quick distinguishing method to reduce the complexity of the original algorithm. Finally, the simulation result demonstrates that, compared with the original algorithm, the optimal algorithm reduces about 50 percent of complexity and only suffers less than 0.5 dB PAPR performance degradation. So the optimal algorithm is suitable for the OFDM system in which the number of subblock is relatively large, usually greater than 8.更多还原