In the distributed remote (CEO) source coding problem, many separate encoders observe independently noisy copies of an underlying source. The rate loss is the difference between the rate required in this distributed setting and the rate that would be required in a setting where the encoders can fully cooperate. In this sense, the rate loss characterizes the price of distributed processing. We survey and extend the known results on the rate loss in various settings, with a particular emphasis on the case where the noise in the observations is Gaussian, but the underlying source is general.
翻译:在分布式遥控源编码问题中,许多独立的编码员都观察到一个源头的独立杂音副本,损失率是这种分布式设置所需的费率与编码员能够充分合作的环境所需的费率之间的差额,从这个意义上讲,损失率是分布式处理价格的特征,我们调查并推广不同环境的已知损失率结果,特别强调观测结果中的噪音是Gaussian,但基本来源是一般性的。