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553 articles for “COD”
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Research ArticleOpen accessEvery word in the titleA Comparative Study of Construction Techniques of t-Error Correction/All Unidirectional Error Detection CodesThabit Sultan Mohammed, Laith A. Al-JobouriThe theory and application of (t-EC-AUED) codes was presented and among the methods proposed in literature, the most efficient was chosen and a software was written for encoding and decoding of the codes. Comparison and evaluation of the construction techniques were carried out. A t-Error Correction (EC)/All Unidirectional Error Detection (AUED) codes are constructed by appending a single check symbol … …Journal of Computer Science, Vol. 11, Issue 2 · 28 Jan 2015 · 6,577 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePerformance Analysis of Joint Degree Distribution (JDD) in Luby Transform CodesI. Joe Louis Paul, S. Radha, J. RajaLuby Transform (LT) codes, the first realization of rateless codes are widely used in wireless communication mainly for its adaptability to varying channel conditions and its capacity approaching performance. In spite of the above advantages and its simplicity in implementation, LT codes suffer from a bottle neck of premature termination due to the poor design of degree distribution. In this … …Journal of Computer Science, Vol. 11, Issue 1 · 13 Aug 2014 · 7,262 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTHROUGHPUT AND BIT ERROR RATE ANALYSIS OF LUBY TRANSFORM CODES WITH LOW AND MEDIUM NODAL DEGREE DISTRIBUTIONSI. Joe Louis Paul, S. Radha, J. RajaThis study presents two degree distributions namely low and medium nodal degree distributions aiming to build a low overhead Luby Transform (LT) codes. The motivation is to design a fast encoder/decoder especially for real-time multimedia streaming and multicasting applications using LT codes. The key idea of this study is to restrict the average degree of the transmitted encoded symbols as … …American Journal of Applied Sciences, Vol. 11, Issue 9 · 12 Aug 2014 · 6,617 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCOMENTE+: A TOOL FOR IMPROVING SOURCE CODE DOCUMENTATION USING INFORMATION RETRIEVALJulio Cezar Zanoni, Milton Pires Ramos, Cesar Augusto Tacla et al.Document source code is seen as a boring time consuming task by several developers. However, a well-documented source code, allow developers to have a better visibility into what was and is being developed, helping, for example, the reuse of the code. This study presents a semi-automatic method for documentation of source code from the existing artifacts in a software project … …Journal of Computer Science, Vol. 10, Issue 5 · 4 Jan 2014 · 7,451 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA CASE FOR HYBRID INSTRUCTION ENCODING FOR REDUCING CODE SIZE IN EMBEDDED SYSTEM-ON-CHIPS BASED ON RISC PROCESSOR CORESGovindarajalu Bakthavatsalam, K. M. MehataEmbedded computing differs from general purpose computing in several aspects. In most embedded systems, size, cost and power consumption are more important than performance. In embedded System-on-Chips (SoC), memory is a scarce resource and it poses constraints on chip space, cost and power consumption. Whereas fixed instruction length feature of RISC architecture simplifies instruction decoding and pipeline implementation, its undesirable … …Journal of Computer Science, Vol. 10, Issue 3 · 23 Nov 2013 · 6,830 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMESSAGE AUTHENTICATION CODE BASED SECURE GROUP KEY MANAGEMENT PROTOCOL FOR MOBILE AD HOC NETWORKST. Peer Meera Labbai, V. RajamaniA mobile ad hoc network is a group of nodes which are communicating with each other with the use of radio frequencies. When there is high movement of mobile nodes, the nodes find difficult to reach other nodes. If the data are exchanged between nodes when there is high mobility, the data may be lost in transit. Therefore the security … …Journal of Computer Science, Vol. 9, Issue 10 · 5 Sep 2013 · 6,732 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleHardware Modeling of Binary Coded Decimal Adder in Field Programmable Gate ArrayMuhammad Ibn Ibrahimy, Rezwanul Ahsan, Iksannurazmi Bambang SoerosoThere are insignificant relevant research works available which are involved with the Field Programmable Gate Array (FPGA) based hardware implementation of Binary Coded Decimal (BCD) adder. This is because, the FPGA based hardware realization is quiet new and still developing field of research. The article illustrates the design and hardware modeling of a BCD adder. Among the types of adders, … …American Journal of Applied Sciences, Vol. 10, Issue 5 · 28 May 2013 · 6,519 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleHigh Frequency of Stop Codons in the Human Immunodeficiency Virus-1 Protease Gene Frame in Human Immunodeficiency Virus+ Individuals with Below Detectable Levels of Plasma Viremia During Highly Active Antiretroviral TherapyMagdalena Czubala, Kabo Matlho, Maria Arriaga et al.We performed sequence analysis of HIV-1 proviral protease gene fragment (560 base pairs) amplified from ex-vivo peripheral blood mononuclear cells of 83 HIV+ individuals with Below Detectable Levels (BDL) (<20-40 RNA copies/ml plasma) and detectable levels of plasma HIV viremia while on HAART. Noteworthy was the systematic presence of stop codons identified only in the BDL group and not in … …American Journal of Infectious Diseases, Vol. 8, Issue 3 · 14 Nov 2012 · 8,075 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleOptical Code-Division Multiple-Access and Wavelength Division Multiplexing: Hybrid Scheme ReviewHesham A. Bakarman, P. Susthitha Menon, Isaac A.M. Ashour, Sahbudin ShaariProblem statement: Hybrid Optical Code-Division Multiple-Access (OCDMA) and Wavelength-Division Multiplexing (WDM) have flourished as successful schemes for expanding the transmission capacity as well as enhancing the security for OCDMA. However, a comprehensive review related to this hybrid system are lacking currently. Approach: The purpose of this paper is to review the literature on OCDMA-WDM overlay systems, including our hybrid approach … …Journal of Computer Science, Vol. 8, Issue 10 · 29 Aug 2012 · 7,864 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleVideo Streaming in Peer-to-Peer Networks Using Network Coding Renders Efficient Video Cassette Recorder OperationsR. Arockia Xavier Annie, K. V. Pradeepthi, P. YogeshProblem statement: Major technological development in recent years has led to the usage of shared streaming solutions by Peer-to-Peer (P2P) Video-on-Demand (VoD) systems in the Internet. Video streaming in P2P network systems has ample amount of loss of video packets due to network disabilities such as congestion, intrusion, connectivity problems, excessive network collisions etc. Adding onto the video streaming problems, … …Journal of Computer Science, Vol. 8, Issue 10 · 24 Aug 2012 · 6,744 accessesView PDFCite