International Journal on Future Revolution in Computer Science & Communication Engineering
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Achieve Secure Handover Session Key Management via Mobile Relay in LTE-Advanced Networks
Get PDFInternet of Things is increasing the network by group action immense quantity of close objects which needs the secure and reliable transmission of the high volume knowledge generation, and also the mobile relay technique is one among the economical ways in which to satisfy the on-board knowledge explosion in LTE-Advanced (LTE-A) networks. However, the observe of the mobile relay can cause potential threats to the knowledge security throughout the relinquishing method. Therefore, to handle this challenge, during this paper, we have a tendency to propose a secure relinquishing session key management theme via mobile relay in LTE-A networks. Specifically, within the planned theme, to realize forward and backward key separations, the session key shared between the on-board user instrumentality (UE) and also the connected donor evolved node B (DeNB) is initial generated by the on-board UE then firmly distributed to the DeNB. moreover, to cut back the communication overhead and also the process complexness, a unique proxy re-encryption technique is used, wherever the session keys at the start encrypted with the general public key of the quality management entity (MME) are going to be re-encrypted by a mobile relay node (MRN), so alternative DeNB will later rewrite the session keys with their own non-public keys whereas while not the direct involvement of the MME. elaborated security analysis shows that the planned theme will with success establish session keys between the on-board UEs and their connected DeNB, achieving backward and forward key separations, and resisting against the collusion between the MRN and also the DeNB because the same time. Additionally, performance evaluations via in depth simulations area unit applied to demonstrate the potency and effectiveness of the planned theme
Synthesis and Characterization of Eu, Tb doped Y2SiO5 Phosphors
Get PDFThe structural and the optical properties of Terbium and Europium doped yttrium silicate phosphor particles were analyzed. The samples were prepared through solid state reaction method and investigated in a doping concentration of Tb(2%) and Eu(1.5%). The prepared phosphors are characterized using X-ray diffraction (XRD), SEM.FTIR and PL emission of Y2SiO5 phosphor doped with Tb(2%) and Eu(1.5%) was studied. The observed PL emission is at 380 nm followed by the emissions with good intensity at 487, 545, 586, 613 and 622nm. The present phosphor may be a good candidate for LED
Analysis of Various Techniques of Steganography for Embedding and Securing Data
Get PDFData has become vulnerable to attackers and viruses so that security of the data has become main purpose now days. The steganography is a proficient technique to secure the data and has a long history but now the steganography has changed a lot. In modern steganography the digital carrier, electronic text, disk space, network packets, digital images, digital videos, digital audio etc are used for hiding the data. This study is organized with an objective to have an overview to steganography and its various types. The techniques for image steganography are also discussed in this work
Comparison of Stability Indices for Critical Line at Different Loading Conditions
Get PDFModern power systems are operating under much stressed load conditions and also facing the problem of limited capacity of power generating sources. Voltage instability is a quite frequent phenomenon under such situation rendering degradation of power system performance. In order to avoid system voltage collapse and blackouts, power system is to be analyzed in view of voltage stability for a wide range of system conditions. This paper discusses the use of line voltage stability indices termed as fast voltage stability index (FVSI) and line stability index (Lmn) in order to determine the critical line. The line with least stability margin is ranked highest indices value is identified as theoretical line. The performances of the indices are investigated for the IEEE 14 - bus test system at different loading using MATLAB simulations
Barriers to Refactoring: Issues and Solutions
Get PDFRefactoring mechanism is commonly used in software development. Though Object oriented programming promotes ease in designing reusable software but the long coded methods makes it unreadable and enhances the complexity of the methods. The common code defects are associated with large classes and methods. To ease up the code comprehension Extract method, Extract class serves as a comfortable option to reduce the disorganization and duplication of the code to produce more fine grained methods and classes. Though refactoring serves as an important mechanism to improve the software quality whether performed manually or in an automated way with the help of tools or IDEs but there are umpteen cases where refactoring could lead to deterrent effect. This paper intends to explore the various problems and barriers associated with refactoring and specifically while extracting the code (extract method, extract class, extract interface) and their solutions
Bianchi Type-III Spacetime and Generalized Cosmic Chaplygin Gas
Get PDFBianchi type-III cosmological model with generalized cosmic Chaplygin gas equation of state has been studied in general theory of relativity. To characterize different phases of the universe, the statefinder diagnostic pair {r,s} has been adopted. We investigated the stability of the model and also discussed the physical and geometrical properties
Low Power and Delay Efficient 32 �Bit Hybrid Carry skip Adder Implementation using HDL
No full textThe Carry skip adder (CSKA) is an efficient adder in terms of power consumption and area usage as the critical path delay and power-delay product of CSKA is small compared to other conventional adders. However the use of Multiplexer of Carry skip logic in CSKA causes an increase in power consumption due to the use of large numbers of Transistors (i.e., 12). Hence, a power efficient CSKA called Concatenation-Incrementation (CI-CSKA) has been proposed. In CI-CSKA, the power reduction can be enhanced by replacing the Multiplexer that is used to skip the carry with Or-And-Invert (OAI)/And-Or Invert (AOI) logic. As the number of transistors is reduced to half by using AOI/OAI logic when compare to MUX, Power reduction is achieved without compromising the speed making it suitable for a wide range of low power applications. For further improvement in delay, hybrid variable CICSKA has been proposed. Here the size of each stage is varied with increment in size from stage1 to nucleus stage and then decrement to the final stage. Simulations by using hybrid variable latency CSKA produces a high speed and reduce the power consumption. By using a hybrid variable latency technique (which uses parallel prefix network) will further reduce the power consumption when compared to the simple variable stage style implementation. The entire architecture can be modelled using Verilog code with the help of Xilinx ISE tool. The efficiency of the proposed structure for variable stage style was studied by comparing their power and delay with those Conv-CSKA,CICSKA
A Survey on Relevance Feedback for Information Retrieval Based on User Query
Get PDFUsers of online web engines frequently think that it�s hard to express their requirement for information as a query. Be that as it may, if the user can distinguish cases of the sort of records they require, then they can utilize a system known as relevance feedback. Relevance feedback covers a scope of methods planned to enhance a user's inquiry and encourage recovery of information important to a user's information require. In this paper we review relevance feedback strategies. We presented both procedures, in which the framework changes the user's inquiry, and intuitive strategies, in which the user has control over question alteration. We additionally consider particular interfaces to relevance feedback frameworks and qualities of searchers that can influence the utilization and achievement of relevance feedback frameworks
Importance of Sense and Reference in the Field of Web
Get PDFWith the technology revolution, the demand of computers, laptops, mobiles has been increased from last decade. Internet has become an excellent tool to connect the users via social media. Now, any user can share his/her views electronically in public. A user can also retrieve the desired information through search engines like Google. Few years back, one has to go to libraries or purchase a book/magazine to get the information. But, now with the introduction of internet, user just needs to mention related words of desired query and within a fraction of second, the web browser displays the cluster of web links. User gets the desired information on clicking on the most relevant web link. Page ranking algorithm is applied on these link outputs
Data Aware Routing in Wireless Sensor Networks
Get PDFThe wireless sensor network (WSN) has set of wireless intelligent sensor nodes with high speed network. Nodes are deployed randomly in a surge of unanticipated applications. The routing is one of the most important challenges in WSNs for data transmission over the sensor nodes. The paper proposes the data aware routing in WSNs, which incorporates energy efficient routing of data. The objective of the proposed work is to improve the performance of network in terms of energy consumption and throughput. The simulation results show that the proposed approach perform better in-terms of utilization of minimum energy, efficient for cluster formation, and reduce communication overhead in WSNs