Routing multicast connections with optimal network cost in ATM networks

2002 ◽  
Author(s):  
Xiaohua Jia ◽  
C.H. Lee ◽  
J.M. Ng ◽  
E. Chan
Keyword(s):  
Atm Networks ◽  
Network Cost ◽  
Optimal Network

scholarly journals Survivability in ATM networks

2021 ◽  
Author(s):  
Guangyan Ma
Keyword(s):  
Network Design ◽  
Atm Networks ◽  
Self Healing ◽  
Spare Capacity ◽  
Design Problems ◽  
Optimal Network Design ◽  
Optimal Network ◽  
Failure Event ◽  
Operational Aspect ◽  
Operational Aspects

n ATM network design, self-healing is the ability of the network to continue to provide service in the event of failures, and this compromises both planning and operational aspects. The planning aspect involves optimal/near-optimal network design problems while the operational aspect deals with the implementation of protection schemes using restoration mechanisms, for allocating spare capacity to the network to be used in case of a failure event. This project investigates the survivability (i.e. restoration ratio) - here defined by means of the aggregate restoration ratio - in existing ATM networks based on various spare capacity distribution schemes, with the goal to (1) compare the network survivability for link and path restorations, and (2) determine the effects of various traffic and design related patterns on the restoration ratio.

scholarly journals Survivability in ATM networks

2021 ◽  
Author(s):  
Guangyan Ma
Keyword(s):  
Network Design ◽  
Atm Networks ◽  
Self Healing ◽  
Spare Capacity ◽  
Design Problems ◽  
Optimal Network Design ◽  
Optimal Network ◽  
Failure Event ◽  
Operational Aspect ◽  
Operational Aspects

n ATM network design, self-healing is the ability of the network to continue to provide service in the event of failures, and this compromises both planning and operational aspects. The planning aspect involves optimal/near-optimal network design problems while the operational aspect deals with the implementation of protection schemes using restoration mechanisms, for allocating spare capacity to the network to be used in case of a failure event. This project investigates the survivability (i.e. restoration ratio) - here defined by means of the aggregate restoration ratio - in existing ATM networks based on various spare capacity distribution schemes, with the goal to (1) compare the network survivability for link and path restorations, and (2) determine the effects of various traffic and design related patterns on the restoration ratio.

scholarly journals Optimizing Network Controllability with Minimum Cost

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Xiao Wang ◽  
Linying Xiang
Keyword(s):  
Minimum Cost ◽  
Directed Network ◽  
System A ◽  
Network Cost ◽  
Optimal Network ◽  
Minimum Number ◽  
Structural Controllability ◽  
The One ◽  
The Cost ◽  
Network Controllability

In this paper, the issue of optimally modifying the structure of a directed network to guarantee its structural controllability is investigated. Given a directed network, in order to obtain a structurally controllable system, a framework for finding the minimum number of directed edges that need to be added to the network is proposed. After we get these edge-addition configurations, we further calculate the network cost of each optimization scheme and choose the one with the minimum cost. Our main contribution is twofold: first, we provide an algorithm able to find all optimal network modifications in polynomial time; second, we provide a way to calculate the cost of optimizing the network based on the node betweenness. Numerical simulations are given to illustrate the theoretical results.

Optimales Layout einer Walderschliessung

2016 ◽  
Vol 167 (5) ◽  
pp. 294-301
Author(s):  
Leo Bont
Keyword(s):  
Road Network ◽  
Spatial Arrangement ◽  
Problem Situation ◽  
Optimal Layout ◽  
Forest Road ◽  
The Road ◽  
Network Cost ◽  
User Friendly ◽  
Short Time

Optimal layout of a forest road network The road network is the backbone of forest management. When creating or redesigning a forest road network, one important question is how to shape the layout, this means to fix the spatial arrangement and the dimensioning standard of the roads. We consider two kinds of layout problems. First, new forest road network in an area without any such development yet, and second, redesign of existing road network for actual requirements. For each problem situation, we will present a method that allows to detect automatically the optimal road and harvesting layout. The method aims to identify a road network that concurrently minimizes the harvesting cost, the road network cost (construction and maintenance) and the hauling cost over the entire life cycle. Ecological issues can be considered as well. The method will be presented and discussed with the help of two case studies. The main benefit of the application of optimization tools consists in an objective-based planning, which allows to check and compare different scenarios and objectives within a short time. The responses coming from the case study regions were highly positive: practitioners suggest to make those methods a standard practice and to further develop the prototype to a user-friendly expert software.

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