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605 results for “information systems”
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Research ArticleOpen accessAll words, across the recordEFFECTIVE BLACK HOLE ATTACKS IN MANETSRaja Azlina Raja Mahmood, Zurina Mohd Hanapi, Sazlinah Hasan, AsadIqbal KhanBlack hole or packet drop attack is a denial of service attack on routing protocols in which malicious nodes fabricate routing information, attract packets routed through them and then deliberately drop these packets. Most of the black hole attack simulations are performed by constantly fabricating routing information and thus consistently attracting packets to them, which can be easily detected by … …Journal of Computer Science, Vol. 9, Issue 12 · 25 Nov 2013 · 6,936 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordPRESERVATION OF THE PRIVACY FOR MULTIPLE CUSTODIAN SYSTEMS WITH RULE SHARINGB. Murugeshwari, C. Jaya Kumar, K. SarukesiThe aim of the research work is to mine the data set available with each custodian in a semi honest model, securely without disclosure of any data amongst various custodians involved. No custodian discloses any information. In the proposed scheme in order to reduce the computational complexity, the data partitioning has been done in the horizontal way. The proposed research … …Journal of Computer Science, Vol. 9, Issue 9 · 6 Aug 2013 · 6,314 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordMembrane Computing Inspired Genetic Algorithm on Multi-Core ProcessorsAli Maroosi, Ravie Chandren MuniyandiMembrane computing is a branch of natural computing. Several studies have recently attempted to utilize the structure of membrane computing to improve intelligent algorithms. These studies have applied communication rules in membrane models to facilitate information exchange between membranes, thereby improving the performance of those algorithms. However, parallel membrane computing has not yet been considered. This study proposes a membrane … …Journal of Computer Science, Vol. 9, Issue 2 · 12 Apr 2013 · 6,628 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordErgodic Capacity Analysis of Multiple Input Multiple Output Systems with Dual Hop Amplify and Forward Relay NetworksC. Poongodi, A. ShanmugamProblem Statement: In MIMO system, capacity mainly depends on the channel and the antenna characteristics. The capacity can be improved by proper design of antenna elements and choosing appropriate array configuration and the directive elements give more capacity than omni directional elements. The dual polarized antennas are better than single polarized antennas as the former can provide two information channels. … …Journal of Computer Science, Vol. 7, Issue 12 · 17 Oct 2011 · 6,745 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordA New Approach for Sub-Channels Assignment in Downlink Fourth Generation Mobile SystemsFakhreddine Khelifa, Abdelaziz SametProblem statement: We proposed a new heuristic method for subchannels allocation problem in the context. Approach: In this system, OFDM transmission method has been used, in order to reduce the effect of multipath fading, OFDMA to achieve multiple access schemes and flexibility in resource allocation. Results: An adaptive method for subchannels allocation is necessary in order to exploit the multiuser … …Journal of Computer Science, Vol. 7, Issue 9 · 23 Jul 2011 · 6,593 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordSegmented Block Cipher Algorithm Based on ASCII-Codes ManeuverShadi Rasheed Masadeh, Hamza Abbass Al-SewadiDue to their complexity, computation time and power requirement, the secure and widely used cryptographic systems such as 3DES and AES may not be considered suitable for applications like mobile and remote sensing of sensitive data. Therefore, secure but less complicated algorithms for data encryption are still sought. This paper suggests a new Segmented Block Cipher Algorithm (SBCA) is a … …Journal of Computer Science, Vol. 13, Issue 12 · 15 Dec 2017 · 6,903 accessesView PDFCite
Case ReportOpen accessAll words, across the recordKnowledge Creation and Virtual Knowledge ba: A Case Study of Car Dealer in TaiwanJui-Min HsiaoThe process of knowledge creation is continuous and has dynamic interactions amid tacit and explicit knowledge which generates a substantial context. This paper is aimed to establish a technology-based virtual knowledge ba, which enables the combination of an open flow of diverse knowledge and thus leads to the creation of more knowledge. A case study which focuses on a Ford … …American Journal of Applied Sciences, Vol. 14, Issue 10 · 12 Oct 2017 · 8,242 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordThe Existing Methods for Motion Control of Flexible Needles along a Curved Path as Part of Robotic Systems for BrachytherapyAleksandr Vitaljevich Lopota, Nikolai Anatoljevich Gryaznov, Olga Valerjevna Velichko et al.Review of the recent developments in steerable needles and control algorithms of their movements in curvilinear directions in the human body for the modern robotic system to perform brachytherapy in prostate cancer patients is presented. Advantages of steerable needles over the standard ones are described; design aspects of these needles and results of the phantom studies are discussed. Scientific novelty … …American Journal of Applied Sciences, Vol. 13, Issue 1 · 22 Jan 2016 · 7,495 accessesView PDFCite
Review ArticleOpen accessAll words, across the recordThe Dependence of Opportunistic Behavior from Economic GrowthNatalia Grigoryeva, Olga GrigoryevaThe study of opportunistic behavior is important because it directly affects the efficiency of economic systems. We conducted qualitative and correlation analysis. The dependence between the manifestations of opportunistic behavior and economic growth was proved. In the article we attempt to identify significant correlation between the rate of economic growth and opportunistic behavior. The study proved the high importance, because … …American Journal of Applied Sciences, Vol. 12, Issue 3 · 26 May 2015 · 7,041 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordDEVELOPMENT OF OBSTACLE AVOIDANCE TECHNIQUE IN WEB-BASED GEOGRAPHIC INFORMATION SYSTEM FOR TRAFFIC MANAGEMENT USING OPEN SOURCE SOFTWARENik Mohd Ramli Nik Yusoff, Helmi Zulhaidi Mohd Shafri, Ratnasamy Muniandy, Islam Mohammad WaliThe shortest path routing is one of the well-known network analysis techniques implemented in road management systems. Pg Routing as an extension of Postgre SQL/Post GIS database is an open source library that implements the Dijkstra shortest path algorithm. However, the functionality to avoid obstacles in that analysis is still limited. Therefore, this study was conducted to enable obstacle avoidance … …Journal of Computer Science, Vol. 10, Issue 7 · 16 Jun 2014 · 6,933 accessesView PDFCite