Two-way source coding with a fidelity criterion
Two-way source coding with a fidelity criterion
复制标题
具有保真度标准的双向源编码
DOI：
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发表时间：
1985
影响因子：
2.5
通讯作者：
A. Kaspi
中科院分区：
文献类型：
--
作者：
A. Kaspi
令 (X_{i}, Y_{i}), i= 1,2 cdots 为独立、同分布的二元随机变量序列，并考虑以下通信情况。过程的 X 分量在某个位置（例如 A）观察到，而 Y 分量在不同的位置（例如 B）观察到。该过程的 X(Y) 部分必须在位置 B(A) 处重现。需要找到应该在两个位置之间交换的信息量，以便所产生的失真不会超过某个预定的容限。给出了速率和失真的某个区域 {cal****}^{K} 子集 {cal R}^{4} 的“单字母表征”。该区域包含（全部且仅）特殊情况下可实现的速率和失真，其中使用块编码并且通过单向链路传送信息，该单向链路每个块只能切换方向 K 次。
Let (X_{i}, Y_{i}), i= 1,2 cdots , be a sequence of independent, identically distributed bivariate random variables and consider the following communication situation. The X component of the process is observed at some location, say A , while the Y component is observed at a different location, say B . The X(Y) component of the process has to be reproduced at location B(A) . It is desired to find the amount of information that should be exchanged between the two locations, so that the distortions incurred will not exceed some predetermined tolerance. A "single-letter characterization" of a certain region {cal****}^{K} subset {cal R}^{4} of rates and distortions is given. This region contains (all, and only) the achievable rates and distortions for the special case where block coding is used and the information is conveyed through a one-way link that can switch direction only K times per block.