Local routing in a tree metric 1-spanner

نویسندگان

چکیده

Solomon and Elkin (SIAM J Discret Math 28(3):1173–1198, 2014) constructed a shortcutting scheme for weighted trees which results in 1-spanner the tree metric induced by input tree. The spanner has logarithmic lightness, diameter, linear number of edges bounded degree (provided degree). This been applied series papers devoted to designing degree, low-diameter, low-weight $$(1+\epsilon )$$ -spanners Euclidean doubling metrics. In this paper, we present simple local routing algorithm spanner. ratio 1, is guaranteed terminate after $$O(\log n)$$ hops requires $$O(\varDelta \log bits storage per vertex where $$\varDelta $$ maximum on constructed. can be adapted makes use scheme.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Distributed Spanner Construction in Doubling Metric Spaces

This paper presents a distributed algorithm that runs on an n-node unit ball graph (UBG) G residing in a metric space of constant doubling dimension, and constructs, for any ε > 0, a (1 + ε)-spanner H of G with maximum degree bounded above by a constant. In addition, we show that H is “lightweight”, in the following sense. Let ∆ denote the aspect ratio of G, that is, the ratio of the length of ...

متن کامل

The zoo of tree spanner problems

Tree spanner problems have important applications in network design, e.g. in the telecommunications industry. Mathematically, there have been considered quite a number of maxstretch tree spanner problems and of average stretch tree spanner problems. We propose a unified notation for 20 tree spanner problems, which we investigate for graphs with general positive weights, with metric weights, and...

متن کامل

Competitive Routing on a Bounded-Degree Plane Spanner

We show that it is possible to route locally and competitively on two bounded-degree plane 6-spanners, one with maximum degree 12 and the other with maximum degree 9. Both spanners are subgraphs of the empty equilateral triangle Delaunay triangulation. First, in a weak routing model where the only information stored at each vertex is its neighbourhood, we show how to find a path between any two...

متن کامل

Computation of a Tree 3-Spanner on Trapezoid Graphs

In a graph G , a spanning tree T is said to be a tree t-spanner of the graph G if the distance between any two vertices in T is at most t times their distance in G . The tree t-spanner has many applications in networks and distributed environments. In this paper, an algorithm is presented to find a tree 3 -spanner on trapezoid graphs in ) ( 2 n O time, where n is the number of vertices of the g...

متن کامل

Improved Local Algorithms for Spanner Construction

Let S be a set of n points in the plane, let E be the complete Euclidean graph whose point-set is S, and let G be the Delaunay triangulation of S. We present a very simple local algorithm that, given G, constructs a subgraph of G of degree at most 11 that is a geometric spanner of G with stretch factor 2.86, and hence a geometric spanner of E with stretch factor < 7. This algorithm gives an O(n...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Combinatorial Optimization

سال: 2021

ISSN: ['1573-2886', '1382-6905']

DOI: https://doi.org/10.1007/s10878-021-00784-4