Theoretical Limits and Practical Detection Schemes for Markovian-Gaussian Channels
Theoretical Limits and Practical Detection Schemes for Markovian-Gaussian Channels
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马尔可夫-高斯通道的理论极限和实际检测方案
DOI：
10.1109/icc.2008.188
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
G. Colavolpe
中科院分区：
文献类型：
--
作者：
D. Fertonani;G. Colavolpe
我们考虑在受脉冲噪声影响的信道上的数字通信。一个两个状态的马尔可夫信道模型，它不同于一般认为在文献中的无记忆模型，允许描述的脉冲噪声的典型突发性质。首先，通过信息理论的参数，我们计算和讨论这样的系统的最终性能限制。然后，我们推导出一个最佳的最大后验符号检测算法，并解释如何利用它在接收机采用迭代检测/解码。最后，我们报告的模拟结果显示所提出的计划的有效性，以及一个很好的协议与计算的理论限制。
We consider digital communications over channels impaired by impulse noise. A two-state Markov channel model is adopted, which, unlike the memoryless models generally considered in the literature, allows to describe the typical bursty nature of the impulse noise. First, by means of information-theoretical arguments, we compute and discuss the ultimate performance limits of such systems. Then, we derive an algorithm for optimal maximum-a-posteriori symbol detection, and explain how to exploit it in receivers employing iterative detection/decoding. Finally, we report simulation results showing the effectiveness of the proposed schemes, as well as an excellent agreement with the computed theoretical limits.
影响因子：
2.5
作者：
Richardson, TJ;Urbanke, RL
通讯作者：
Urbanke, RL