Proposal and application of hybrid SLM-PTS method in 8QAM-OFDM optical access system for reducing PAPR influence

2017 2nd International Conference on Image, Vision and Computing (ICIVC) Pub Date : 2017-06-01 DOI:10.1109/ICIVC.2017.7984688

Changxiang Li, Yufeng Shao, Zhifeng Wang, Yue Zhou, Junyi Zhou, Wenzhe Ma, Jianjun Wang

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引用次数: 7

Abstract

In this letter, a novel hybrid SLM-PTS algorithm for reducing peak-to-average power ratio (PAPR) influence, is proposed and analyzed in an 10Gbit/s 8QAM-OFDM optical access system. After the serial-to-parallel conversion, transmitted signals are divided into two data subblocks, and one subblock is processed by SLM method and the other is processed by PTS. And then the processed data subblocks are merged into one transmission sequence. In 10Gbit/s optical access systems, through comparing PAPR, bit error rate (BER) and computational complexity, SLM, PTS and hybrid SLM-PTS methods show their respective advantages. The results show that the hybrid SLM-PTS algorithm can provide a possible compromise for PAPR reduction. The proposed hybrid algorithm exhibits lower computational complexity when the used subcarriers number is smaller. Compared with traditional PTS and SLM methods, using the proposed method the value of BER is the lowest under the certain signal to noise ratio (SNR) condition.

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8QAM-OFDM光接入系统中减小PAPR影响的混合SLM-PTS方法的提出及应用

本文在10Gbit/s 8QAM-OFDM光接入系统中，提出并分析了一种用于降低峰值平均功率比(PAPR)影响的新型混合SLM-PTS算法。经过串并转换后，将传输的信号分成两个数据子块，一个子块采用SLM方法处理，另一个子块采用PTS方法处理。然后将处理后的数据子块合并成一个传输序列。在10Gbit/s光接入系统中，通过比较PAPR、误码率(BER)和计算复杂度，SLM、PTS和混合SLM-PTS方法显示出各自的优势。结果表明，混合SLM-PTS算法可以为降低PAPR提供一种可能的折衷方案。该混合算法在子载波数较少时具有较低的计算复杂度。与传统的PTS和SLM方法相比，在一定信噪比条件下，该方法的误码率最低。

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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2017 2nd International Conference on Image, Vision and Computing (ICIVC)

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