用不同乘积分布推导信源信道误差指数
A Derivation of the Source-Channel Error Exponent using Non-identical Product Distributions
摘要：
本文研究了信源-信道编码的随机编码指数，其中信源信息被分配到不相交的子集（称为类），码字根据依赖于信源信息的类索引的分布独立生成。对于离散无记忆系统，两个最佳选择的类和产品分布被发现是足以达到球包装指数在那些情况下，它是紧的。
英文摘要：
This paper studies the random-coding exponent of joint source-channel coding for a scheme where source messages are assigned to disjoint subsets (referred to as classes), and codewords are independently generated according to a distribution that depends on the class index of the source message. For discrete memoryless systems, two optimally chosen classes and product distributions are found to be sufficient to attain the sphere-packing exponent in those cases where it is tight.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
