迭代非线性失真消除OFDM接收机

2010 IEEE 11th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2010-06-20 DOI:10.1109/SPAWC.2010.5671076

L. Baltar, S. Dierks, F. Gregorio, J. Cousseau, J. Nossek

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引用次数: 5

摘要

针对正交频分复用(OFDM)系统中功率放大器(PA)引起的非线性失真，提出了两种实用的消除方案。该算法是迭代的，并且位于接收端。他们利用软信道解码器来提高失真估计的能力，并将所有的计算复杂性传递给接收器。仿真结果表明，该算法可以将编码误码率(BER)提高到接近线性系统情况的水平。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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OFDM receivers with iterative nonlinear distortion cancellation

We propose two practical schemes for the cancellation of nonlinear distortions caused by the power amplifiers (PA) in Orthogonal Frequency Division Multiplexing (OFDM) systems. The algorithms are iterative and located at the receiver. They utilize a soft channel decoder to improve the capabilities of the distortion estimation and relay all the computational complexity to the receiver. Simulation results show that the algorithm can improve the coded bit error rate (BER) to levels close to the linear system case.

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来源期刊

2010 IEEE 11th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)

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