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In this paper, we focus on the topic of dynamic routing of multicast sessions in WDM networks. We consider a multilayer optimization problem that combines two approaches - optimization of an overlay (application) multicasting and next provisioning of created overlay multicasting tree as a set of unicast demands in the underlying WDM network. Moreover, we address our problem with the survivability...
Multicast has been being developed as a very promising technique to data delivery to a group of destinations simultaneously. Except of first implementation for multicasting in the Internet aka IP Multicast, for past few years some systems defined for end-hosts overlay network have been successfully designed and implemented. Additionally, overlay multicast defined for end-host based networks has been...
Most of previous research on survivable networks has been focused on protecting the unicast traffic against random failures. In this paper we propose a new approach, called RA (resistant-to-attack), to provide protection of anycast and unicast communications against attacks on irregular (e.g. scale-free) networks. We use the single backup path approach to provide protection against a single node failure...
Most of previous research on survivable networks has been related to unicast communications. In this paper we propose a new approach to network survivability of anycast communications. To the best of our knowledge, anycast defined as one-to-one-of-many technique has not received much attention recently. To provide network survivability, we use the single backup path approach, i.e. each demand has...
The growing need for computationally demanding systems triggers the development of various network-oriented computing systems organized in a distributed manner. In this work we concentrate on one kind of such systems, i.e. public-resource computing systems. The considered system works on the top of an overlay network and uses personal computers and other relatively simple electronic equipment instead...
This work focuses on the problem of survivable network design with simultaneous unicast and anycast flows. The motivation for this problem is twofold. First, in recent years we can observe an increasing popularity of network services using anycast flows (e.g. content delivery networks (CDN), domain name service (DNS), peer-to-peer (P2P)) systems. Second, current users require reliable network services,...
The paper centers around the problem of survivable network design for simultaneous unicast and anycast flows. This problem arises from the growing popularity of network services using anycast flows (e.g. Domain Name Service (DNS), peer-to-peer (P2P) systems, Content Delivery Networks (CDN)) and the increasing need to provide reliable network services. We formulate four new optimization models of joint...
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