Reliability is one of the most important aspects of software systems of any kind (embedded systems, information systems, intelligent systems, etc.) The size and complexity of software is growing dramatically during last decades and especially during last few years. Various methods can be used to achieve the software reliability i.e. software reliability engineering, fault tolerance, testing str...

Several proposals have been made to achieve efficient routing of unicast and multicast data in wireless mobile ad hoc networks. This paper evaluates a new approach to use link layer parameters to determine a link quality value for route calculation, especially for multicast data dissemination. Simulation results suggest that a shortest path metric is rarely the best choice. Instead, a signal st...

The expected transmission count (ETX) metric is a new route metric for finding high-throughput paths in multi-hop wireless networks. The ETX of a path is the expected total number of packet transmissions (including retransmissions) required to successfully deliver a packet along that path. For practical networks, paths with the minimum ETX have the highest throughput. The ETX metric incorporate...

In Mobile Ad hoc Networks (MANETs), where nodes have limited transmitting power, the transmission is typically multi-hop. The network topology changes frequently due to the unpredictable movement of mobile nodes because each node is free to move arbitrarily with different speeds. Thus, when one node enters in the transmission range of another node a link between those two nodes is established, ...

The quality of two-way links is always asymmetric in practical two-way relay channels (TWRC) and therefore, the capacity of TWRC will be limited by the weaker link. An asymmetric modulation scheme, with physical layer network coding, was presented in order to improve the transmission reliability in TWRC. This makes full use of the stronger link to improve the overall transmission rate and also ...

The exact calculation of all-terminal network reliability is an NP-hard problem, with computational e!ort growing exponentially with the number of nodes and links in the network. During optimal network design, a huge number of candidate topologies are typically examined with each requiring a network reliability calculation. Because of the impracticality of calculating all-terminal network relia...

Variation of frequency and voltage by load changes in a microgrid is a challenge in droop control method. Centralized restoration frequency or voltage in a microgrid requires communication link and therefore affects the advantage of decentralized droop control such as reliability, simplicity and inexpensiveness. This paper proposes a decentralized method that restores the frequency of a microgr...

Reliability of software counts on its fault-prone modules. This means that the less software consists of fault-prone units the more we may trust it. Therefore, if we are able to predict the number of fault-prone modules of software, it will be possible to judge the software reliability. In predicting software fault-prone modules, one of the contributing features is software metric by which one ...

We have developed a program that helps in reliability modeling of tree topology micro mobility networks. The use of this program is restricted to networks where link errors are independent. In this paper we present a method how this program can be used to compute the reliability of networks where link failures are not completely independent. By using our method we examine the effect of link fai...