Lower bounds on the capacity for Poisson optical channel
Lower bounds on the capacity for Poisson optical channel
复制标题
泊松光通道容量下限
DOI：
10.1109/wcsp.2014.6992179
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
J. Dang
中科院分区：
文献类型：
--
作者：
Yingying Yu;Zaichen Zhang;Liang Wu;J. Dang
在峰值功率和平均功率约束下，推导了泊松信道模型光通信系统新的可靠和精确的容量界。该界是基于Poisson随机变量的两个熵不等式。仿真结果表明，所提出的界限是更严格的比以前的，特别是在低信噪比（SNR）的区域，其中大多数无线光链路通常工作。
New reliable and accurate capacity bounds for Poisson channel modeled optical communication system are derived under peak-power and average-power constraints. The bounds are based on two entropy inequalities of Poisson random variables. Simulation results show that the proposed bounds are much tighter than previous ones, especially at lower signal-to-noise (SNR) region, where most wireless optical links typically operate.