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Disjoint paths

Planar Disjoint-Paths Completion

Planar Disjoint-Paths Completion

... H consists of unit-length paths and has the property that ˜ P ∪ H ˜ contains k disjoint paths. Intuitively, each ˜ H is a certificate of the part of the DP solution that lies within G when the patch ...

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An Algorithm for Finding Two Node-Disjoint Paths in Arbitrary Graphs

An Algorithm for Finding Two Node-Disjoint Paths in Arbitrary Graphs

... edge-disjoint paths between a source and destination with the minimum sum of the metrics on the two paths is obtained (as- suming that at least one pair of disjoint paths ...

14

An O(√n) Approximation and Integrality Gap for Disjoint Paths and Unsplittable Flow

An O(√n) Approximation and Integrality Gap for Disjoint Paths and Unsplittable Flow

... edge that is picked can eliminate other edges of total flow of at most 4/ε. Let F 0 be the set of self-loops in F. We claim that the pairs associated with the edges in F 0 can be routed in G via edge-disjoint ...

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End-to-End Key Exchange through Disjoint Paths in P2P Networks

End-to-End Key Exchange through Disjoint Paths in P2P Networks

... In order to address the security challenges of P2P networks, we propose an improvement built upon our CLOAK architecture defined in our previous work [25] on one hand and a new approach for key exchange that generalizes ...

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A Genetic Algorithm for Maximum Edge-disjoint Paths Problem and Its Extension to Routing and Wavelength Assignment Problem.

A Genetic Algorithm for Maximum Edge-disjoint Paths Problem and Its Extension to Routing and Wavelength Assignment Problem.

... In this chapter, we provide a review of the maximum edge-disjoint paths problem (MEDP) and one of its extended real-world applications – routing and wavelength assignment problem (RWA). In Section 2.1, a ...

151

Train routing at the Shunt Yard : a Disjoint Paths approach

Train routing at the Shunt Yard : a Disjoint Paths approach

... The Disjoint Paths approach might be a valuable alternative for submodule RouteZoeker of OPG+. Especially when the shunting puzzle becomes very challenging, the freedom of this method outperforms ...

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Performance Betterments of Disjoint Paths in Designing an Efficient Multipath Routing in MANETs

Performance Betterments of Disjoint Paths in Designing an Efficient Multipath Routing in MANETs

... Node-disjoint paths have many applications in multipath routing. AODVM a multipath routing protocol is used to find node-disjoint paths. Here in this protocol, intermediate nodes are not ...

7

Multiple Disjoint Paths Routing Using Implicit Source Routes in Wireless Ad Hoc Networks

Multiple Disjoint Paths Routing Using Implicit Source Routes in Wireless Ad Hoc Networks

... We observe that MDP does work as efficient as DSR in terms of packet delivery ratio and packet delivery latency. Recall that both of them deliver packets by routing paths in on-demand manner. In Figure 4a, even ...

5

Note on the problem of partially link disjoint paths

Note on the problem of partially link disjoint paths

... One problem is that the algorithm could finally mark nodes before all partly disjoint paths are collected and therefore part of the path is missed. This can be handled by a “step back” to the origin node ...

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A heuristic to generate all best partially disjoint paths in a communications network

A heuristic to generate all best partially disjoint paths in a communications network

... Since the load rises above the target bandwidth the scheme reduces the number of tokens that are available on this link Figure 5 but since there are about 200 flows that are persistent f[r] ...

7

Irrelevant vertices for the planar Disjoint Paths Problem

Irrelevant vertices for the planar Disjoint Paths Problem

... of paths certifying a solution to the problem can be rerouted to an equivalent one, that links the same pairs of terminals, but in which the new paths avoid ...

36

Mirror image based disjoint multi paths routing algorithm for maximizing communication efficiency

Mirror image based disjoint multi paths routing algorithm for maximizing communication efficiency

... Two paths are wanted in a five-node CR network, and there are two candidate spec- trum channels which are sensed in two time slots, the detailed SHM is stated above each ...multiple paths which have been ...

14

Multipath Routing Protocol using Cross layer based QoS Metrics for IEEE 802  11e WLAN

Multipath Routing Protocol using Cross layer based QoS Metrics for IEEE 802 11e WLAN

... multiple disjoint paths and then estimates the Combined Cost (CC) metric based on the metrics such as: Traffic Contention Time (TCT), Average Transmission Delay (ADelay) and Signal Fading Value ...multiple ...

5

MSDM: Maximally Spatial Disjoint Multipath Routing Protocol for MANET

MSDM: Maximally Spatial Disjoint Multipath Routing Protocol for MANET

... maximally disjoint compared with the primary ...maximally disjoint path, it chooses those paths with the shortest hop ...node- disjoint paths were as stable as link-disjoint ...

7

Quality of Service Routing in Ad hoc Wireless Networks

Quality of Service Routing in Ad hoc Wireless Networks

... Th1 and Th2 then it is in second link class. If a node is in the range of SR and Th2 then it is in third link class. In the route discovery phase of ADQR, a source node broadcasted a route request packet and search for ...

10

On the zero forcing number of graphs and their splitting graphs

On the zero forcing number of graphs and their splitting graphs

... vertex disjoint paths, then their remains 2n − 2 uncovered ...independent paths. In this case the total number of paths we need to cover the entire vertices in Γ is 2n − 2 + 2 = ...

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Embedding Two Edge-Disjoint Hamiltonian Cycles and Two Equal Node-Disjoint Cycles into Twisted Cubes

Embedding Two Edge-Disjoint Hamiltonian Cycles and Two Equal Node-Disjoint Cycles into Twisted Cubes

... node-disjoint paths P and Q in T Q n such that start ( P ) = 00(0) n−3 1, end ( P ) = 01(0) n−3 1, start ( Q ) = 00(0) n−3 0, and end ( Q ) = 11(0) n−3 ...Hamiltonian paths and is described as ...

6

The Inapproximability of Maximum Single-Sink Unsplittable, Priority and Confluent Flow Problems

The Inapproximability of Maximum Single-Sink Unsplittable, Priority and Confluent Flow Problems

... node-disjoint paths was proven to be hard by Guruswami et ...edge-disjoint paths was recently proven to be hard by Naves, Sonnerat and Vetta [27], even in planar graphs where terminals lie on ...

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Energy Efficient Routing Protocol Avoiding Route Breaks based on DSR

Energy Efficient Routing Protocol Avoiding Route Breaks based on DSR

... link disjoint paths [26] however to the best of my knowledge none has reported a technique considering energy aware node stability, path quality in terms of link stability, traffic aware and data types ...

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Performance Evaluation of Multipath Discovery Algorithms for VoD Streaming in Wireless Mesh Network

Performance Evaluation of Multipath Discovery Algorithms for VoD Streaming in Wireless Mesh Network

... the paths from each source to a ...the paths are get discovered in a single step by this the time required to perform other operation is ...the paths need to be edge disjoint (i.e. the ...

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