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Modified Companding Algorithm for PAPR Reduction in LOFDM System
Pages: 100-102,107
Year: Issue:  13
Journal: Video Engineering

Keyword:  LOFDMpeak-to-average power ratio (PAPR)nonlinear companding transform;
Abstract: 针对传统压扩变换方法存在计算复杂度较高或设计灵活性不够的问题,推导并提出了一种新的、更为高效的非线性压扩变换改进算法.通过引入适当的参数,简化了压扩变换中功率守恒时的参数计算问题,所提出的方法不仅可以降低计算复杂度,而且系统灵活性也得到进一步的改善.仿真实验表明该算法可在抑制PAPR和保证误码性能之间取得更好的折中.
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