In order to realize real-time communication over Ethernet or fast Ethernet, one must be able to bound the medium access time within an acceptable limit. The multiple access nature of an Ethernet makes it impossible to guarantee a deterministic medium access time (hence packet delivery deadlines) to individual stations. However, one can bound the medium access time statistically by limiting the ...

The paper presents an implementation of QoS Library Redirection (QLR) for DiffServ in Microsoft Windows systems. In QLR method, the legacy application obtains packet pre-marking ability without any modification of source codes. We have upgraded the FTP and vic applications by using QLR in our Microsoft Windows testing platform. Our experimental results show that this approach can use really eff...

Because of the use of scattering based communication channels, passivity based telemanipulation systems can be subject to a steady state position error between master and slave robots. In this paper, we consider the case in which the passive master and slave sides communicate through a packet switched communication channel (e.g. Internet) and we provide a modification of the slave impedance con...

This paper describes a modification of the backoff mechanism for IEEE 802.11 networks. The efficiency of the modified backoff mechanism compared to that is currently used in the standard was analyzed. The realized throughput and the mean packet delay for DSSS and FHSS physical layers for different number of stations were determined. The overall rate of collisions that occurred during transmissi...

This paper thoroughly studies a modification of tree algorithm with successive interference cancellation. In particular, we focus on the algorithm throughput and account for a single signal memory location, as well as cancellation errors of three types. The resulting scheme is robust to imperfect interference cancellation and is tailored to the uplink bandwidth request collision resolution in a...

The main objective of this paper is to use ant optimized neural networks to generate artificial earthquake records. In this regard, training accelerograms selected according to the site geology of recorder station and Wavelet Packet Transform (WPT) used to decompose these records. Then Artificial Neural Networks (ANN) optimized with Ant Colony Optimization and resilient Backpropagation algorith...

This article puts forth a multistream networking paradigm, referred to as soft-source-information-combining (SSIC), support wireless Internet of Things (IoT) applications with ultrareliability requirements. For SSIC networking, an dispatcher at the source dispatches duplicates packets over multiple streams, which may be established different physical networks. If packet on stream cannot decoded...

Packet delay is one of the most important metrics in network management and monitoring in the Internet. Recently, it has also been considered as a tool in distance estimation used for location-based services. In the Internet, packet delay is basically due to the link bandwidth, the propagation path distance, the number links, and the system resources at the end hosts. Quantitatively, the aggreg...

Problem statement: In Mobile Ad hoc Network (MANET), both the routing layer and the Medium Access Control (MAC) layer are vulnerable to several attacks. There are very few techniques to detect and isolate the attacks of both these layers simultaneously. In this study, we developed a combined solution for routing and MAC layer attacks. Approach: Our approach, makes use of three techniques simult...