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A construction of matroidal error correcting networks

机译:拟阵纠错网络的构造

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Matroidal error correcting networks were recently introduced in [1] as a generalisation of the notion of matroidal networks introduced by Dougherty et al. to network-error correction. An acyclic network (with arbitrary sink demands) was shown to possess a scalar linear error correcting network code if and only if it is a matroidal error correcting network associated with a representable matroid. Therefore, networks with such scalar linear network-error correcting codes imply the existence of certain representable matroids that satisfy some special conditions, and vice versa. In this paper, we use this relationship between matroids and network-error correcting codes to present an algorithm which enables the construction of scalar linearly solvable multicast networks with a specified capability of network-error correction. Using this construction algorithm, a large class of hitherto unknown scalar linearly solvable networks with multicast network-error correcting codes is made available for theoretical use and practical implementation, with parameters such as number of information symbols, number of sinks, number of network coding nodes, error correcting capability, etc. being arbitrary but for computing power (for the execution of the algorithm).
机译:最近在[1]中引入了拟阵误差校正网络,作为对Dougherty等人提出的拟阵网络概念的概括。进行网络错误纠正。一个非循环网络(具有任意宿需求)被证明具有标量线性纠错网络代码,当且仅当它是与可表示的拟阵相关的拟阵纠错网络。因此,具有这种标量线性网络纠错码的网络意味着存在满足某些特殊条件的某些可表示拟阵,反之亦然。在本文中,我们利用拟阵与网络纠错码之间的这种关系,提出了一种算法,该算法能够构建具有指定网络纠错能力的标量线性可解多播网络。使用这种构造算法,具有多点广播网络纠错码的一大类迄今未知的标量线性可解网络可用于理论使用和实际实现,其参数包括信息符号数量,接收器数量,网络编码节点数量,纠错能力等是任意的,但具有计算能力(用于执行算法)。

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