Title
Fast approximation algorithms for routing problems with hop-wise constraints.
Abstract
Given a graph (,) with a cost (or benefit) and a delay on each arc, the constrained routing problem (CRP) aims to find a minimum-cost or a maximum-benefit path from a given source to a given destination node, subject to an end-to-end delay constraint. The problem (with a single constraint) is NP-hard, and has been studied by many researchers who found fully polynomial approximation schemes (FPAS) for this problem. The current paper focuses on a generalized CRP version, CRP with hop-wise constraints (CRPH). In the generalized version, instead of one constraint there are up to −1 special-type constraints, where is the number of nodes. An FPAS based on interval partitioning is proposed for both the minimization and the maximization versions of CRPH. For (,) with nodes and arcs, the complexity of the algorithm is O( /).
Year
DOI
Venue
2014
10.1007/s10479-013-1308-5
Annals OR
Keywords
Field
DocType
Approximation algorithms,Combinatorial problems,Shortest path,Routing
Graph,Approximation algorithm,Discrete mathematics,Mathematical optimization,Polynomial,Shortest path problem,Minification,Hop (networking),Maximization,Mathematics
Journal
Volume
Issue
ISSN
222
1
0254-5330
Citations 
PageRank 
References 
0
0.34
13
Authors
1
Name
Order
Citations
PageRank
Amir Elalouf101.01