Search Results - "Zaks, Shmuel"
-
1
The Traffic Grooming Problem in Optical Networks with Respect to ADMs and OADMs: Complexity and Approximation
Published in Algorithms (01-05-2021)“…All-optical networks transmit messages along lightpaths in which the signal is transmitted using the same wavelength in all the relevant links. We consider the…”
Get full text
Journal Article -
2
Profit Maximization in Flex-Grid All-Optical Networks
Published in Theory of computing systems (01-02-2020)“…All-optical networks have been largely investigated due to their high data transmission rates. The key to the high speeds in all-optical networks is to…”
Get full text
Journal Article -
3
On the Online Coalition Structure Generation Problem
Published in The Journal of artificial intelligence research (01-01-2021)“…We consider the online version of the coalition structure generation problem, in which agents, corresponding to the vertices of a graph, appear in an online…”
Get full text
Journal Article -
4
Enhanced Content Update Dissemination Through D2D in 5G Cellular Networks
Published in IEEE transactions on wireless communications (01-11-2016)“…Opportunistic traffic offloading has been proposed to tackle overload problems in cellular networks. However, existing proposals only address…”
Get full text
Journal Article -
5
Flexible bandwidth assignment with application to optical networks
Published in Journal of scheduling (01-06-2018)“…We introduce two scheduling problems, the flexible bandwidth allocation problem ( FBAP ) and the flexible storage allocation problem ( FSAP ). In both…”
Get full text
Journal Article -
6
On the intersection of tolerance and cocomparability graphs
Published in Discrete Applied Mathematics (30-01-2016)“…Tolerance graphs have been extensively studied since their introduction, due to their interesting structure and their numerous applications, as they generalize…”
Get full text
Journal Article -
7
Multicast Communications with Varying Bandwidth Constraints
Published in IEEE INFOCOM 2021 - IEEE Conference on Computer Communications (10-05-2021)“…To find a maximum number of communication requests that can be satisfied concurrently, is a fundamental network scheduling problem. In this work we investigate…”
Get full text
Conference Proceeding -
8
On the complexity of the regenerator location problem treewidth and other parameters
Published in Discrete Applied Mathematics (30-01-2016)“…We deal with the Regenerator Location Problem in optical networks. We are given a network G=(V,E), and a set Q of communication requests between pairs of…”
Get full text
Journal Article -
9
Optimizing bandwidth allocation in elastic optical networks with application to scheduling
Published in Journal of discrete algorithms (Amsterdam, Netherlands) (01-07-2017)“…We study a problem of optimal bandwidth allocation in the elastic optical networks technology, where usable frequency intervals are of variable width. In this…”
Get full text
Journal Article -
10
Constructing minimum changeover cost arborescenses in bounded treewidth graphs
Published in Theoretical computer science (28-03-2016)“…Given an edge-colored graph, an internal vertex of a path experiences a reload cost if it lies between two consecutive edges of different colors. The value of…”
Get full text
Journal Article -
11
Graphs of edge-intersecting non-splitting paths in a tree: Representations of holes—Part I
Published in Discrete Applied Mathematics (31-12-2016)“…Given a tree and a set P of non-trivial simple paths on it, Vpt(P) is the VPT graph (i.e. the vertex intersection graph) of the paths P of the tree T, and…”
Get full text
Journal Article -
12
Graphs of edge-intersecting and non-splitting paths
Published in Theoretical computer science (23-05-2016)“…The families of Edge Intersection Graphs of Paths in a tree (resp. in a grid) EPT (resp. EPG) are well studied graph classes. Recently we introduced the class…”
Get full text
Journal Article -
13
Placing Regenerators in Optical Networks to Satisfy Multiple Sets of Requests
Published in IEEE/ACM transactions on networking (01-12-2012)“…The placement of regenerators in optical networks has become an active area of research during the last few years. Given a set of lightpaths in a network G and…”
Get full text
Journal Article -
14
SLEEPWELL: Energy Efficient Network Design for the Developing World Using Green Switches
Published in 2016 IEEE 30th International Conference on Advanced Information Networking and Applications (AINA) (01-03-2016)“…Internet is growing rapidly in the developing world now. Stringent budget constraints give rise to networks with tree topology, leaving lesser room to apply…”
Get full text
Conference Proceeding Journal Article -
15
Minimizing total busy time in parallel scheduling with application to optical networks
Published in Theoretical computer science (06-09-2010)“…We consider a scheduling problem in which a bounded number of jobs can be processed simultaneously by a single machine. The input is a set of n jobs J = { J 1…”
Get full text
Journal Article -
16
On the complexity of constructing minimum changeover cost arborescences
Published in Theoretical computer science (26-06-2014)“…The reload cost concept refers to the cost that occurs at a vertex along a path on an edge-colored graph when it traverses an internal vertex between two edges…”
Get full text
Journal Article -
17
Optimizing busy time on parallel machines
Published in Theoretical computer science (2015)“…We consider the following fundamental parallel machines scheduling problem in which the input consists of n jobs to be scheduled on a set of identical machines…”
Get full text
Journal Article -
18
On the Complexity of the Regenerator Placement Problem in Optical Networks
Published in IEEE/ACM transactions on networking (01-04-2011)“…Placement of regenerators in optical networks has attracted the attention of recent research works in optical networks. In this problem, we are given a network…”
Get full text
Journal Article -
19
-
20
On the Complexity of the Regenerator Cost Problem in General Networks with Traffic Grooming
Published in Algorithmica (01-03-2014)“…In a communication network one often needs to combine several communication requests into a path in a physical layer of the network. In these cases the cost is…”
Get full text
Journal Article