Channel simulation and coding with side information
Channel simulation and coding with side information
复制标题
信道模拟和带有辅助信息的编码
DOI：
10.1109/18.335877
复制
发表时间：
1994
期刊：
影响因子：
--
通讯作者：
S. Verdú
中科院分区：
文献类型：
--
作者：
Y. Steinberg;S. Verdú
研究模拟随机系统（通道）所需的最小随机比特率，其中模拟器使用给定的外部输入进行操作。作为模拟精度的衡量标准，作者使用了联合输入输出分布之间的变分距离和 d~ 距离。他们找到了精确模拟所需的每个输入样本的渐近随机位数，作为输入过程分布的函数。这些结果适用于任意通道和输入过程，包括非平稳和非遍历过程，并且不取决于特定的模拟方案。分析的副产品是带有辅助信息的最小可实现源编码率的通用公式。 >
Studies the minimum random bit rate required to simulate a random system (channel), where the simulator operates with a given external input. As measures of simulation accuracy the authors use both the variational distance and the d~ distance between joint input-output distributions. They find the asymptotic number of random bits per input sample required for accurate simulation, as a function of the distribution of the input process. These results hold for arbitrary channels and input processes, including nonstationary and nonergodic processes and do not hinge on a specific simulation scheme. A by-product of the analysis is a general formula for the minimal achievable source coding rate with side information. >