Society is growing increasingly dependent upon large-scale, highly distributed systems that operate in unbounded network environments. Unbounded networks, such as the Internet, have no central administrative control and no unified security policy. Furthermore, the number and nature of the nodes connected to such networks cannot be fully known. Despite the best efforts of security practitioners,...

The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Multi-Attribute Tradespace Exploration (MATE) for Survivability is introduced as a general methodology for survivability analysis and demonstrated through an application to a satellite radar system. MATE for Survivability applies decision theory to the parametric modeling of th...

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 provides an overview of the survivability issues in PCS networks with emphasis on the unique difficulties presented b...

Society is growing increasingly dependent upon large-scale, highly distributed systems that operate in unbounded network environments. Unbounded networks, such as the Internet, have no central administrative control and no unified security policy. Furthermore, the number and nature of the nodes connected to such networks cannot be fully known. Despite the best efforts of security practitioners,...

Abstract We provide a novel decomposition of changing gaps in life expectancy between rich and poor into differential changes age-specific mortality rates differences “survivability”. Declining increases expectancy, but the gain is small if likelihood living to this age (ex-ante survivability) or expected remaining lifetime short (ex-post survivability). Lower survivability explains half recent...

This paper presents a method for analyzing the survivability of distributed network systems and an example of its application. Survivability is the capability of a system to fulfill its mission, in a timely manner, in the presence of attacks, failures, or accidents. Survivability requires capabilities for intrusion resistance, recognition, and recovery. The Survivable Network Analysis (SNA) met...

We define the k-survivability of a set of n paths as the probability that at least k out of n robots following those paths through a stochastic threat environment reach goals. High k-survivability sets tend to contain short and diverse paths. Finding sets of paths with maximum k-survivability is NPhard. We design two algorithms: a complete algorithm that finds an optimal list of paths, and a he...

This paper provides a survey on existing survivability related problems and include the new algorithm based on existing algorithms. Survivability has become an important issue and topical subject in WDM networks. This paper reviewed the literature on survivability against multi-domain or link failures to ensure reliability in WDM networks. Survivability in multi-domain optical networks is very ...

Survivability is the ability of a system to minimize the impact of a finite-duration disturbance on value delivery (i.e., stakeholder benefit at cost), achieved through (1) the reduction of the likelihood or magnitude of a disturbance, (2) the satisfaction of a minimally acceptable level of value delivery during and after a disturbance, and/or (3) a timely recovery. Traditionally specified as a...