Constellation design for channels affected by phase noise
Constellation design for channels affected by phase noise
复制标题
受相位噪声影响的通道的星座设计
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
G. Montorsi
中科院分区：
文献类型：
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作者：
F. Kayhan;G. Montorsi
在本文中，我们优化星座集用于受相位噪声影响的信道。其主要目标是在给定的功率约束下最大化星座图的互信息。假设信道噪声和相位噪声都是白色噪声，近似计算给定星座的互信息和实用互信息。然后采用模拟退火算法对星座图和二进制标记进行联合优化。优化星座的性能相比，传统的星座显示相当大的增益，在所有系统的情况下。
In this paper we optimize constellation sets to be used for channels affected by phase noise. The main objective is to maximize the achievable mutual information of the constellation under a given power constraint. The mutual information and pragmatic mutual information of a given constellation is calculated approximately assuming that both the channel and phase noise are white. Then a simulated annealing algorithm is used to jointly optimize the constellation and the binary labeling. The performance of optimized constellations is compared with conventional constellations showing considerable gains in all system scenarios.