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As multilevel inverters are gaining importance, new topologies are being proposed especially for increased number of levels while reducing the number of power switches. In this paper, a level-doubling network (LDN) is proposed for the recently proposed ‘cross-connected sources based multilevel inverter (CCS-MLI)’ topology. While doubling the number of levels in the output voltage, the proposed LDN...
The nodes in wireless networks without infrastructure have a limited range and they collaborate with their adjacent nodes to transmit packets which are destined out of their scope. Nodes use a trust based transmission method based on previous records of successful packet transmission. Nodes which violate this relay of packets and cause denial of service attack in the form flooding of large packets...
Aren't you love to substitute password based entry control to avoid having to reset forgotten password and worry about the integrity of your system? Aren't you cognate to rest secure in comfort that your healthcare system does not solely on your social security number as proof of your identity for granting access to your medical records? As a result each of these questions are seemly more and more...
This paper presents an optimum design technique of broadband two elements Yagi array antenna. The optimization parameter for the proposed antenna is the impedance bandwidth using appropriate dimensions of ground plane and in yagi array dipole is replace by patch, all elements design in form patch and arranged horizontally, in this paper we observed effect with and without ground plane on impedance...
Interaction between mobile antenna and human head has claimed to introduce serious health hazards, like brain tumor, nerve damage and memory loss. The antenna radiations absorbed in human body are expressed in terms of specific absorption rate (SAR). In this paper influence of circular patched electromagnetic band gap (EBG) substrate on SAR and far-field pattern of dipole phase array antenna to realize...
This Paper represents a novel radio resource allocation algorithm which is advanced form of proportional fair (PFclassical) algorithm. Among all existing Radio resource algorithm proportional fair algorithm gives optimum performance compared to two classical algorithms max-C/I and RR. But advanced PF algorithm gives better performance in terms of providing data rate to low SINR users that mean it...
The advancing world of digital multimedia communication is faces problems related to security and authenticity of digital data. In the context of multimedia communication, digital images and videos have numerous applications in entertainment world like TV channel broadcasting. Digital Watermarking algorithms used to protect the copyright of digital images and to verify multimedia data security. Most...
The Border Gateway Protocol (BGP) is the path vector routing protocol that connects different autonomous systems. The traditional BGP protocol is weak to provide security for AS path and verification of Autonomous system number ownership as well as network prefix. The BGP remains vulnerable to various types of misconfiguration and attacks. Many secure BGP algorithms have been proposed but complexity...
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