The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In wireless sensor networks, in-network data aggregation filters out redundant sensor readings in order to reduce the energy and bandwidth consumed in disseminating the data to the base-station. In this paper, we investigate the problem of reliable collection of aggregated data with minimal latency. The aim is to form an aggregation tree such that there are k disjoint paths from each node to the base-station...
This paper presents a multi-agent learning system for health care practitioners named SimDeCS (Simulation for Decision Making in the Health Care Service). The main contribution of this work is the system architecture, model-learning environment supported by artificial intelligence techniques, and its evaluation as a educational software. The SimDeCS was designed as a multi-agent system, composed by...
This paper presents a software simulator to be used as a part of a didactic strategy based on project-based learning where students better understand technical details associated to self-organizing wireless devices. This simulator is implemented as a multi-agent, web-based system where each device is an autonomous agent that can be controlled by students via configuration. System simulates two types...
Due to the rapidly growing MEMS initiator market and the needs for smaller, safer and higher integration, more advanced switches are in demand. The novel solid MEMS switch can improve the security and reliability of MEMS initiator, while the leads of its package are weak under high impact. This paper mainly studied the leads reliability of the novel solid MEMS switch under high impact by FEM simulation...
A compact NBTI model is presented by directly solving the reaction-diffusion (RD) equations in a simple way. The new model can handle arbitrary stress conditions without solving time-consuming equations and is hence very suitable for analog/mixed-signal NBTI simulations in SPICE-like environments. The model has been implemented in Cadence ADE with Verilog-A and also takes the stochastic effect of...
An efficient colorization scheme for images based on prioritized source propagation is proposed in this work. A user first scribbles colors on a set of source pixels in an image. The proposed algorithm then propagates those colors to the other non-source pixels. Specifically, the proposed algorithm identifies the non-source pixel with the highest priority, which can be most reliably colorized. Then,...
High demanded reliable components or systems projects necessitate reliability prediction in early design and development phase. Historically reliability predictions are performed using standardization of the technique such as MIL-HDBK-217 or similar handbook, which in many cases has produced inaccurate reliability results. Today's complex designs, which have intricate interfaces and boundaries, cannot...
MPLS-Traffic Engineering (MPLS-TE) provides many recovery mechanisms such as rerouting and protection. Existing one-to-one backup and path-based backup schemes are not resource efficient. We propose Common Protection Path (CPP), a novel protection scheme which selects a common protection path for traffic demands having the same ingress and egress routers. CPP also factors in path failure probability...
This special session aims at presenting the recent developments and contributions within the field of reliability and maintenance of complex production systems, be it of goods or services. Contributions proposing new paradigms and approaches for reliability modelling and computation as well as for maintenance modelling and optimization in complex systems are particularly welcome. Scope: • Complex...
This paper is dedicated to thermomechanical simulations for the development of a solder joint fatigue model for large silicon interposers. Works were conducted in the frame of silicon platform developments for heterogeneous RF or MEMS 3D modules, where the silicon interposer could be larger than conventional WLCSP. TCoB tests have been carried out on 14.6 mm×14.6 mm×0.4 mm silicon interposer with...
Certain Wireless Sensor Network (WSN) applications such as patient monitoring, smart grid and equipment condition monitoring require accurate estimation of specific WSN parameters such as the end-to-end delay, the reliability and the power consumption. The estimation of these parameters calls for an accurate and lightweight WSN model that is suitable for the low processing capabilities of sensor nodes...
Wireless sensor networks (WSNs) have been widely used for monitoring applications. However, due to the rigorous deployment environment, reliable operation of WSNs is difficult to guarantee. Thus, the assurance of WSN reliability should be concerned in order to measure physical quantities correctly and effectively, as well as to maximize the lifetime of the system. In this paper, concerns of WSN reliability...
The paper describes the design goals and methodology in creating a new model of optical telecommunication network. The model is implemented by discrete-event network simulator ns-3. The advantages of using the existing simulator core infrastructure provided by ns-3 are analyzed and compared to building own simulator from scratch, or selecting a tool among other existing simulators such as ns-2, OMNeT++,...
The research paper focuses on developing a holonic multi-agent system (HMAS) to assist the central company during the formation of manufacturing networks. The manufacturing network paradigm gives a central company control over which group of manufacturers will participate on its customers' orders. The central company therefore has flexibility over the lead time, the production cost and the conformance...
Peer to Peer (P2P) systems recently are receiving a lot of attention from the researchers. In such systems, peers are heterogeneous in providing resources and services. Peers do not have the same reliability so it is necessary to evaluate their trustworthiness for a reliable sharing of the resources and services. In this paper, we propose a fuzzy-based system for peer reliability in JXTA-Overlay P2P...
A new interference management strategy is proposed for device-to-device (D2D) underlaying cellular networks without the exact location information of cellular user equipments (CUEs). We consider the case where one D2D pair reusing the same channel with cellular users, both uplink and downlink. The base station (BS) only knows the distances that D2D user equipments (DUEs) and CUEs away from BS, instead...
The increasing complexity of multi-core architectures demands for a comprehensive evaluation of different solutions and alternatives at every stage of the design process, considering different aspects at the same time. Simulation frameworks are attractive tools to fulfil this requirement, due to their flexibility. Nevertheless, state-of-the-art simulation frameworks lack a joint analysis of power,...
Aiming at the modeling and simulation problem of dynamic reliability model in the reliability simulation of complex system missions, the descriptive method of system dynamic reliability model based on the reliability relation function, relation matrix and relation network has put forward oriented multi-agent simulation and modeling condition. The paper put forward the new thinking how to solve the...
This paper is a tutorial on RESTART, a widely applicable accelerated simulation technique for estimating rare event probabilities. The method is based on performing a number of simulation retrials when the process enters regions of the state space where the chance of occurrence of the rare event is higher. The paper analyzes its efficiency, showing formulas for the gain obtained with respect to crude...
Due to the operational demands and requirements diversity in wireless sensor networks (WSNs), great improvements in the software engineering process are required. As WSNs increasingly become essential, even critical, components in systems-of-systems (SoSs), the case for verification in the development process is strong. In this position paper we present our vision for a principled formal software...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.