Performance of PPM on terrestrial FSO links with turbulence and pointing errors
Performance of PPM on terrestrial FSO links with turbulence and pointing errors
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DOI：
10.1109/lcomm.2010.05.100202
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发表时间：
2010-05
期刊：
影响因子：
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通讯作者：
W. Gappmair;S. Hranilovic;E. Leitgeb
中科院分区：
文献类型：
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作者：
W. Gappmair;S. Hranilovic;E. Leitgeb
在最近的工作中，开关键控的错误性能已被研究的自由空间光（FSO）链路受到湍流和指向损失。在目前的信中，分析框架扩展到M进制脉冲位置调制（PPM），提供精确的结果为M = 2。由于该方法不直接适用于M > 2的PPM信号，因此针对这种情况导出了平均符号错误概率的闭合形式近似，通过仿真表明，该近似在感兴趣的宽SNR范围内是紧密的。
In recent work, the error performance of on-off keying has been investigated for free-space optical (FSO) links impaired by both turbulence and pointing loss. In the current letter, the analytical framework is extended to M-ary pulse-position modulation (PPM), providing exact results for M = 2. Since the approach is not directly applicable to PPM signals with M > 2, a closed-form approximation of the average symbol error probability is derived for this case, which is shown via simulation to be tight over a wide SNR range of interest.