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arXiv 1901.06804cs.ITmath.IT
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互环结构的推广及其索引编码能力

A Generalisation of Interlinked Cycle Structures and Their Index Coding Capacity

Mahesh Babu Vaddi, B. Sundar Rajan

摘要:

边信息图中的圈和团减少了索引编码问题中所需的传输次数。Thapa,Ong和Johnson定义了一种更一般的重叠循环形式,称为互链循环(IC)结构,它概括了循环和集团。他们提出了一种方案,利用有向图中的IC结构来构造标量线性索引码。在本文中,我们扩展的概念互连循环结构定义更广义的图形结构称为重叠互连循环(OIC)结构。通过给出一个长度等于OIC结构的最大无环导出子图(MAIS)阶数的索引码,证明了OIC结构的容量。

英文摘要:

Cycles and Cliques in a side-information graph reduce the number of transmissions required in an index coding problem. Thapa, Ong and Johnson defined a more general form of overlapping cycles, called the interlinked-cycle (IC) structure, that generalizes cycles and cliques. They proposed a scheme, that leverages IC structures in digraphs to construct scalar linear index codes. In this paper, we extend the notion of interlinked cycle structure to define more generalised graph structures called overlapping interlinked cycle (OIC) structures. We prove the capacity of OIC structures by giving an index code with length equal to the order of maximum acyclic induced subgraph (MAIS) of OIC structures.

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。

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