基于turbo码的卫星间链路中使用OOK和M-PPM调制方案的FSO系统性能评估

2011 International Conference on Electronics, Communication and Computing Technologies Pub Date : 2011-11-15 DOI:10.1109/ICECCT.2011.6077070

Naveen Kumar, V. Jain, Subrat Kar

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引用次数: 13

摘要

本文详细介绍了自由空间光通信中使用的卫星间链路。FSO通信使用激光技术发送和接收数据。对于消息信号的调制，采用了OOK和8ppm方案。由于卫星间链路中的能量是一个主要限制因素，OOK和M-PPM提供了比其他方案更好的选择，因为它们只能在传输1位时保持ON状态。本文采用turbo码来提高系统性能。Turbo码增加了输入块码的冗余。因此，它最小化了代码的平均权重并降低了数据速率。同时，它降低了出错的概率。计算结果表明，系统的整体性能得到了显著提高。

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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Evaluation of the performance of FSO system using OOK and M-PPM modulation schemes in inter-satellite links with turbo codes

This paper gives a detailed overview of the inter-satellite links used in free space optical (FSO) communication. FSO communication uses laser technology to send and receive data. For the modulation of message signal, OOK and 8-PPM schemes are used. As energy in the inter-satellite link is a major constraint, OOK and M-PPM provide better options than others since they have to remain ON for the transmission of bit ‘1’ only. In this paper, turbo code is used for improving the system performance. Turbo code adds redundancy to the input block code. Therefore, it minimizes the average weight of the code and reduces the data rate. At the same time, it lowers the probability of error. Overall performance of the system improves significantly as evident from the computed results.

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2011 International Conference on Electronics, Communication and Computing Technologies

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