Survivability analysis focuses on the ability of network entities to function during incidents such as attacks. Currently, testing survivability of mobile ad hoc networks consists of running scenarios with several configurations, often thousands, to obtain an understanding of the impacts of an attack. This process is very latent, choice of configurations are subjective or random, and results do...

This paper introduces an on-going doctoral research track on the role of survivability as an attribute in the design of complex system architectures. Survivability may be defined generally as the ability of a system to minimize the impact of a finite disturbance on value delivery, achieved through either the satisfaction of a minimally acceptable level of value delivery during and after a finit...

The rapid growth of telecommunication capacity, driven in part by the wide-ranging deployment of fiber-optic technology has led to increasing concern regarding the survivability of such networks. In communication networks, survivability is usually defined as the percentage of total traffic surviving some network failures in the worst case. Most of the survivable network design models proposed t...

Business and social life have become increasingly dependent on largescale communication and information systems. A partial or complete breakdown as a consequence of natural disasters or purposeful attacks might have severe impacts. Survivability refers to the ability of a system to recover from such disaster circumstances. Evaluating survivability should therefore be an important part of commun...

Importance measures are being widely used in risk-informed applications to characterize the importance of component failures, human errors, common cause failures, etc. In order to decrease the impact of external factors and increase the system survivability, a multilevel protection is applied to its components or subsystems. Each level of protection can have multiple states from perfect protect...

Understanding the functionality of a communications system or network in the wake of failures is provided by survivability analysis. A great deal of attention has been focused on survivability of high speed networks and of ad hoc networks supporting battleeeld communications. Very little attention has been placed on the unique survivability issues pertaining to mobile systems supporting cellula...

Pervasive societal dependency on large-scale, unbounded network systems, the substantial risks of such dependency, and the growing sophistication of system intruders, have focused increased attention on how to ensure network system survivability. Survivability is the capacity of a system to provide essential services even after successful intrusion and compromise, and to recover full services i...

For a network system survivability refers to the ability to provide essential services to end users in the presence of failures and/or attacks. Survivability evaluation focuses on the measurement of this ability. As a dominating way of survivability evaluation, the model-based analysis technology for wireless sensor networks(WSNs) faces three problems. First, the technology assumes that node di...

vii 1 Network System Survivability 1 1.1 Survivability Concepts 1 1.2 The Survivable Network Analysis Method 2 2 Sentinel: The Case Study Subsystem 5 3 Applying the Survivable Network Analysis Method to Sentinel 7 3.1 Method Application 7 Step 1: System Definition 8 Step 2: Essential Capability Definition 10 Step 3: Compromisable Capability Definition 10 Step 4: Survivability Analysis 12 4 Less...

Survivability under carbon-starvation conditions was investigated in four species of purple phototrophic bacteria: Rhodopseudomonas palustris, Rhodobacter sphaeroides, Rhodospirillum rubrum, and Rubrivivax gelatinosus. All these test organisms survived longer in the light than in the dark. ATP levels in the cultures were maintained in the light, which indicated that survivability was supported ...