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Although the importance of Disaster Response Networks (DRNs) has been highlighted in many researches, the requirement of spectrum agility has not been well addressed. In this paper, we focus on using all-spectrum cognitive radio for DRNs to fulfill this requirement. We consider a DRN constructed by Cognitive Radio Base Stations (CRBSs), which are deployed in the disaster affected area. Each CRBS is...
Quantum circuit design flow consists of two main tasks: synthesis and physical design. Synthesis converts the design description into a technology-dependent netlist and then, physical design takes the fixed netlist, produces the layout, and schedules the netlist on the layout. Quantum physical design problem is intractable. This process can be divided into two main processes: scheduling and layout...
A new rectifier with combined power flow control capability has been developed to simplify a series-tuned power receiver in inductive power transfer (IPT) applications. Since the traditional IPT receiver usually employs two separate stages (rectifier and power flow regulator) after the tuning circuit to obtain a required DC output voltage, the receiver circuit is often complicated and large. A big...
This paper explores a variation of the Han-Carlson adder for large word sizes and compares the performance of the new design with the traditional design. This work introduces a second type of design with two Brent-Kung stages each at the beginning and at the end and with Kogge-Stone stages in the middle, henceforth referred to as the “Hybrid Han-Carlson design.” With the new design, the Hybrid Han-Carlson...
Attacks on ad hoc network routing protocol affects network performance and reliability. Epidemic routing protocols are based on message flooding in the network which results in large number of lost messages. In this paper, we present a secure minimized dominating set routing protocol for mobile adhoc network based on delay tolerant network. In the proposed model, the route selection is based on concept...
In TDMA based wireless mesh networks, routing and scheduling algorithms are essential to provide QoS support for mesh clients. In order to maximize the network throughput and minimize session delay, the routing and scheduling algorithms should produce a minimum length schedule. A linear programming formulation enables an optimal solution, however has very high computational cost. In this paper, we...
As IP telephony becomes a critical part of the enterprise network infrastructure, there is an increasing need for tools to help manage VoIP systems. In this paper, we introduce DA VINCI, a tool to manage VoIP call routing - the core of VoIP configurations that determines how calls are routed inside the enterprise or between the enterprise and external networks. We first establish the complexity involved...
A location-based reliable multicast algorithm for mobile ad hoc networks is proposed in this paper. A grid network with geographical location information is divided into a high-channel subnetwork and a low-channel subnetwork according to labels of grids. Then destination nodes are partitioned into groups by using location information, the multicast routing is done in label order for each group. The...
Recently, vehicle networks are gaining great deal of attention from the research community. In order to provide efficient and pervasive road communication, Next Generation Vehicular Networks (NVN) are considered a promising solution. NVNs have unique characteristics and face challenging problems. Consequently, it is hard to use the traditional mechanisms and protocols in this type of network. Service...
Wireless mesh networks have been attracting many users in recent years to achieve a wide-area wireless environment with flexible-configuration and low-cost properties by connecting base stations (mesh nodes) with each other via wireless connections. When the wireless mesh networks are used as an infrastructure for Internet access, all network traffic from mobile nodes go through a gateway node which...
In this paper, we talk about techniques to incrementally resynthesize logic cones within a large design impacted by multiple RTL changes in order to accommodate a late functional ECO. In design methodologies where the RTL is hierarchical and the post route netlist is flat, mapping a change in the behavioral description to the post layout netlist is very complicated and may not even be feasible if...
This work proposes the wireless-mesh-network proactive routing (WPR) protocol for wireless mesh networks. Unlike current routing protocols, such as the optimized link- state routing (OLSR), WPR uses a controlled-flooding algorithm tailored to the typical wireless-mesh-network traffic matrix, which concentrates traffic on links close to the gateway. The goal is to improve efficiency by saving network...
Field programmable gate arrays (FPGAs) are getting more and more attractive for military and aerospace applications, among others devices. The usage of non volatile FPGAs, like Flash-based ones, reduces permanent radiation effects but transient faults are still a concern. In this paper we propose a new methodology for effectively measuring the width of radiation-induced transient faults thus allowing...
Technology scaling leads to burn-in phase out and increasing post-silicon test complexity, which increases in-the-field error rate due to both latent defects and actual errors. As a consequence, there is an increasing need for continuous on-line testing techniques to cope with hard errors in the field. Similarly, those techniques are needed for detecting soft errors in logic, whose error rate is expected...
Dependability is an important system attribute for microfluidic lab-on-chip devices. On-line testing offers a promising method for detecting defects, fluidic abnormalities, and bioassay malfunctions during chip operation. However, previous techniques for reading test outcomes and analyzing pulse sequences are cumbersome, sensitive to the calibration of capacitive sensors, and error-prone. We present...
In this paper, a CMOS analog-to-digital converter (ADC) for Ultra Wide Band (UWB) applications with a 6-bit 1GSPS at 1.8 V is described. The architecture of the proposed ADC is based on a fully folded ADC using resistive interpolation technique for low power consumption. To reduce the power consumption, a folder reduction technique to decrease the number of folding blocks (NFB) is proposed. Further,...
3D contactless technology based on capacitive coupling represents a promising solution for high-speed and low power signaling in vertically integrated chips. AC coupled interconnects do not suffer from mechanical stress, and the parasitic load is much reduced when compared to standard DC solutions, such as wire bonding and micro bumps. Communication system based on wireless interconnection scheme...
Expected growth in use and implementation of wireless sensor networks (WSNs) in different environments and for different applications creates new security challenges. In WSNs, a malicious node may initiate incorrect path information, change the contents of data packets, and even hijack one or more genuine network nodes. As the network reliability completely depends on individual nodespsila presence...
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