Modeling the topology of a large network, or a collection of networks such as the Internet, is difficult because of the network’s huge size, great heterogeneity, and rapid change. Traditional models for Internet topology do not satisfactorily reflect the reliability of a real network. In this paper, we introduce α-reliability as a new metric to characterize and evaluate the reliability of a net...

T paper presents a biobjective genetic algorithm (GA) to design reliable two-node connected telecommunication networks. Because the exact calculation of the reliability of a network is NP-hard, network designers have been reluctant to use network reliability as a design criterion; however, it is clearly an important aspect. Herein, three methods of reliability assessment are developed: an exact...

The g-good-neighbor connectivity of G is a generalization the concept connectivity, which just for, and an important parameter in measuring fault tolerance reliability interconnection network. Many well-known networks can be constructed by Cartesian products some simple graphs. In this paper, we determine product We give exact value two complete graphs for , mesh cylindrical grid torus .

Delay Tolerant Networks (DTNs) operate in a environment characterized by intermittently connected links and long, variable latency. End-to-end reliability schemes, such as TCP, perform poorly, or not at all, in this environment. Source node storage becomes a constrained resource when intermittent links have long downtimes or latency to receive acknowledgement from the destination is long. To al...

Information technology can substantially enhance a wide variety of work performances, but such gains are lost if people cannot use the applications. Hence the Technology Acceptance Model (TAM) model successfully made usability a key application quality requirement, alongside functionality. However the field of quality systems requirements includes factors distinct from usability. The Web of Sys...

This paper studies the effect of cascading failures in the risk and reliability assessment of complex infrastructure systems. Conventional reliability assessment is limited to connectivity analysis and does not include the effect of increased flow demand or flow capacity of existing network components. Network flows are associated with congestion-based disruptions which can worsen connectivity-...

Network reliability analyses have received much attention in heterogeneous wireless network performance evaluation during the last few years. In this paper, a method for heterogeneous wireless network reliability evaluation to meet the required levels of heterogeneous wireless network differences of various graph-theoretic connectivity measures is proposed. A concept of heterogeneous wireless n...