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arXiv · 2401.01585

On Completely Edge-Independent Spanning Trees in Locally Twisted Cubes

Xiaorui Li·Baolei Cheng·Jianxi Fan·Yan Wang·Dajin Wang
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Abstract

A network can contain numerous spanning trees. If two spanning trees $T_i,T_j$ do not share any common edges, $T_i$ and $T_j$ are said to be pairwisely edge-disjoint. For spanning trees $T_1, T_2, ..., T_m$, if every two of them are pairwisely edge-disjoint, they are called completely edge-independent spanning trees (CEISTs for short). CEISTs can facilitate many network functionalities, and constructing CEISTs as maximally allowed as possible in a given network is a worthy undertaking. In this paper, we establish the maximal number of CEISTs in the locally twisted cube network, and propose an algorithm to construct $\lfloor \frac{n}{2} \rfloor$ CEISTs in $LTQ_n$, the $n$-dimensional locally twisted cube. The proposed algorithm has been actually implemented, and we present the outputs. Network broadcasting in the $LTQ_n$ was simulated using $\lfloor\frac{n}{2}\rfloor$ CEISTs, and the performance compared with broadcasting using a single tree.

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Xiaorui Li, Baolei Cheng, Jianxi Fan, Yan Wang, Dajin Wang. 2024-01-03. On Completely Edge-Independent Spanning Trees in Locally Twisted Cubes. https://doi.org/10.46298/fi.12785

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