Research and development on the survivability of networks has largely focused on public switched telecommunications networks and high-speed data networks with little attention on the survivability of wireless access networks supporting cellular and PCS communications. This paper presents the effects of failures and survivability issues in PCS networks with emphasis on the unique difficulties pr...

Survivability in networks has always been an important issue and lately becomes for network virtualization. Network virtualization provides to run multiple virtual networks on a shared physical network. Since a failure in the physical network can affect several virtual resources, therefore, the survivability has to be considered in the embedding of the virtual resources. In this paper, we prese...

WDM optical networks are high speed networks and provide enormous capacity. Survivability is very important issue in these networks. Survivability requires resources for handling the failures. So, efficient resource allocation strategy is required for survivability. In this paper, we have presented two resource allocation strategies for survivability. These strategies reserve the resources for ...

1 INTRODUCTION We have begun to investigate a new architectural model for survivability monitoring and control of complex distributed information systems, such as those that underpin critical civic and other infrastructures. The model is a synthesis of two streams of thought. The first was presented in " Information Survivability Control Systems [4]. " That work suggests an approach to dynamic ...

Considerations of survivability and resiliency have always been of importance in the design and analysis of military systems. Over the past two decades, the importance of survivability and resiliency has expanded beyond military systems to include public networks and infrastructure systems. The analysis and assessment of networked systems with respect to survivability has become particularly ac...

BACKGROUND Survivability rates vary widely among various stages of breast cancer. Although machine learning models built in past to predict breast cancer survivability were given stage as one of the features, they were not trained or evaluated separately for each stage. OBJECTIVE To investigate whether there are differences in performance of machine learning models trained and evaluated acros...

Critical infrastructures of today’s society are built over networks that require a degree of survivability not foreseen when they were built. This paper reports on work in progress in a European project that aims to safeguard critical infrastructures such as electricity and telecom networks. It assumes that there will be accidents, attacks, and failures in parts of a network. The goal of safegu...

In this paper we study different options for the survivability implementation in MPLS over Optical Transport Networks (OTN) in terms of network resource usage and configuration cost. We investigate two approaches to the survivability deployment: single layer and multilayer survivability and present various methods for spare capacity allocation (SCA) to reroute disrupted traffic. The comparative...

Large-scale failures triggered by undesirable events such as natural disasters, massive power malfunction, and malicious attacks are attracting serious concerns in communication network infrastructure perspective. However, there have been few survivability strategy analyses in network mobility (NEMO) scenarios. To properly address this issue, this paper proposes two novel survivability strategi...

Though multiagent systems (MASs) are being increasingly used, few methods exist to ensure survivability of MASs. All existing methods suffer from two flaws. First, a centralized survivability algorithm (CSA) ensures survivability of the MAS unfortunately, if the node on which the CSA exists goes down, the survivability of the MAS is questionable. Second, no mechanism exists to change how the MA...