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This paper considers the second-order consensus problem of discrete-time multi-agent systems over fixed and undirected network topologies. A distributed consensus protocol utilizing the current and one-step delayed position information is proposed. It is interesting to found that second-order consensus in such a discrete-time multi-agent system cannot be ensured without any one-step delayed position...
Distributed systems in which users consume and supply different types of services and resources are becoming ever more prevalent. For the matching of consumers and providers, preference-based two-sided matching algorithms can be used to improve the efficiency of the overall match outcome. In such systems, requesting (providing) users rank others based on preferences derived from feedback. Trust can...
This paper presents an autonomic algorithm for constructing minimum spanning trees in a distributed system. Processes are virtually organized on a hypercube-like topology, called VCube. The spanning trees are dynamically created from any source process and regenerated transparently when processes become faulty. Any tree reconstruction is autonomously done based on the virtual topology and on fault...
The efficiency of a contactless power transformer is determined by the output load. We propose a high-efficiency contactless power transfer system for a low-voltage and large-current load. The proposed system is composed of a contactless power transfer system with series and series resonant capacitors and a current-doubler rectifier circuit. This paper presents the characteristic of the proposed system...
This paper is devoted to the consensus problem of multi-agent systems with inherent nonlinear dynamics. To reflect the practical environment of multi-agent systems, the communication topology is assumed to switch slowly within a finite set of directed topologies restricted by an average dwell time switching signal. By taking advantage of tools from switched systems and piecewise Lyapunov functions,...
This paper considers the problem of distributed node-to-node consensus for general linear multi-agent systems with switched pinning links. The control goal in the present work is to make each follower track the corresponding leader asymptotically under the condition that only a small fraction of followers can sense their corresponding leaders through some switched communication channels. By using...
In this paper, a novel automatic approach of computing 3D skeletons of airways is introduced, which is based on optimized double distance transform field and endpoints detection. The advanced double distance transform fields are constructed by the fast marching method (FMM). The endpoints are detected automatically combining 3D SUSAN corner detector and the local extreme value of distance from source...
This paper proposes a novel single-phase seven-level inverter. The topology of the proposed structure is composed of a DC source, a switched-capacitor circuit, and a coupled inductor. Compared to conventional seven-level inverter structure, numbers of switches and capacitors are reduced. The voltages of capacitors are self-balanced by using coupled inductor without complex control method. Therefore,...
Gaussian interconnection networks have recently been introduced as a useful alternative to the classical toroidal network, and in this paper this concept is generalized to higher dimensions. We also explore many important properties of this new topology, including diameter and distance distribution. In addition, an optimal shortest path routing algorithm and a one-to-all broadcast algorithm for higher...
In this paper we present techniques and protocols for protecting a network against multiple link failures. The existing link-based restoration with MPLS Fast Re-route (FRR) is fast, but can create congestion by overloading edges, which is undesirable since many applications are sensitive to congestion-related packet loss. The problem is exacerbated with multiple link failures, frequent enough to be...
Information centric networks (ICNs) allow content objects to be cached within the network, so as to provide efficient data delivery. Existing works on in-network caches mainly focus on minimizing the redundancy of caches to improve the cache hit ratio, which may not lead to significant bandwidth saving. On the other hand, it could result in too frequent caching operations, i.e., cache placement and...
Current data centers often employ SDNs (Software-Defined Networks) that are layered in most cases. However, information overwhelming has been a limitation to SDN deployment. We present a management model for data center networks. In this approach, regional networks on lower layers will be aggregated and viewed as single switches to upper layers. Management information will be divided into three parts,...
Integrated-magnetic interleaved-boost converters are under development for high-current, high-power applications ranging from automotive fuel cells to photovoltaics. This paper presents an investigation of the various continuous-current and discontinuous-current modes of operation of the integrated-magnetic interleaved two-phase boost converter. Experimental validation is presented from a low-power...
In this paper, a modified cascaded H-bridge multilevel inverter (MLI) is proposed and designed for solar applications. Generally, as the level of conventional multilevel inverter increases, the required number of switches and size increases. The proposed topology is cascade of unit stages which involves 5 switches and two voltage source; moreover a unit stage is capable of generating 5 levels. Also,...
High penetration of Grid by various energy resources leads to intermittent voltage and frequency variations. To smoothen out these variations and to integrate energy resources to the grid, this paper proposes a multi-input matrix converter topology to integrate the ac and dc energy resources to the grid. This matrix converter is based on the indirect matrix converter operating in the reverse boost...
Designing a professional Computer Networking course aligned with the up-to-date intended learning outcomes is one of the most important goals for educational institutes working in this field. The particular nature of knowledge, intellectual and professional skills of this dynamic course impose a group of challenges and sophisticated settlement requirements that should be met. The current teaching...
This paper proposes single-phase and three-phase four-level converters with a flying-capacitor leg and a conventional two-level leg per phase. The main advantages of the proposed converter are as following: (1) the same blocking voltage for all switches employed, (2) no capacitor midpoint connection needed (i.e., no low frequency current circulating in dc-link capacitors) and (3) reduced number of...
In this paper realization of 2:4 reversible decoder is proposed which can provide active high as well as active low outputs. The proposed decoder uses Feynman and Fredkin gates and has low quantum cost The proposed gate is fist extended to 3:8 decoder followed by an n-input decoder. The theoretical proposition is verified through SPICE simulations. A comparison with existing reversible decoders is...
As the Internet takes an increasingly central role in day to day communications infrastructure, the slow convergence of routing protocols after a network failure becomes a growing problem. To assure fast recovery from link and node failures in IP networks, it presents a new recovery scheme called Multiple Routing Configurations (MRC). The proposed scheme guarantees recovery in all single failure scenarios,...
In dynamic topology of the MANET's nodes are having the high mobility in nature. Because of the dynamic nature of nodes very difficult to find the exact location of node in network for data delivery. Here we proposed that to find the exact location of node and ensure the data delivery to destination. In existing system, the location aided routing mechanism where used to find location of node. In this...
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