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Relevant bibliographies by topics / Modified prime code

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Academic literature on the topic 'Modified prime code'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Modified prime code"

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Abbas, Huda Saleh, Mark A. Gregory, and Michael W. Austin. "A New Prime Code for Synchronous Optical Code Division Multiple-Access Networks." Journal of Computer Networks and Communications 2018 (2018): 1–11. http://dx.doi.org/10.1155/2018/3192520.

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A new spreading code based on a prime code for synchronous optical code-division multiple-access networks that can be used in monitoring applications has been proposed. The new code is referred to as “extended grouped new modified prime code.” This new code has the ability to support more terminal devices than other prime codes. In addition, it patches subsequences with “0s” leading to lower power consumption. The proposed code has an improved cross-correlation resulting in enhanced BER performance. The code construction and parameters are provided. The operating performance, using incoherent

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Morsy, Morsy A., and Moustafa H. Aly. "A New Hybrid Prime Code for OCDMA Network Multimedia Applications." Electronics 10, no. 21 (2021): 2705. http://dx.doi.org/10.3390/electronics10212705.

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This paper presents a new family of spreading code sequences called hybrid prime code (HPC), to be used as source code for the optical code division multiple access (OCDMA) network for large network capacity. The network capacity directly depends on the number of available code sequences provided and their correlation properties. Therefore, the proposed HPC is designed based on combining two or more different code words belonging to two or more different prime numbers. This increases the number of code sequences generated. The code construction method utilized allows the generation of differen

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Yadav, Rajesh, and Gurjit Kaur. "Modified Three-Dimensional Multicarrier Optical Prime Codes." International Journal of Optics 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/2683607.

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We propose a mathematical model for novel three-dimensional multicarrier optical codes in terms of wavelength/time/space based on the prime sequence algorithm. The proposed model has been extensively simulated on MATLAB for prime numbers (P) to analyze the performance of code in terms of autocorrelation and cross-correlation. The simulated outcome resembles the mathematical model and gives better results over other methods available in the literature as far as autocorrelation and cross-correlation are concerned. The proposed 3D optical codes are more efficient in terms of cardinality, improved

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Yen, Chih Ta, and Wen Bin Chen. "A Study of Modified Prime Codes Optical CDMA for Wired-Wireless System." Applied Mechanics and Materials 284-287 (January 2013): 2672–76. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.2672.

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In this study, we propose optical code-division multiple-access (OCDMA) network for the radio-over-fiber (RoF) transmissions. The network encoder/decoders (codecs) are structured on the basis of arrayed-waveguide-grating (AWG) routers coded with modified prime codes (MPCs). Performances are numerically evaluated with the effect of phase-induced-intensity-noise (PIIN). It showed that the new code families with lower cross correlation can suppress the intensity noise and cancel out the multiple-access interference (MAI) in balanced detection process effectively and hence improve the system perfo

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Yen, Chih-Ta, and Chih-Ming Chen. "BER Analysis Using Beat Probability Method of 3D Optical CDMA Networks with Double Balanced Detection." Mathematical Problems in Engineering 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/456829.

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This study proposes novel three-dimensional (3D) matrices of wavelength/time/spatial code for code-division multiple-access (OCDMA) networks, with a double balanced detection mechanism. We construct 3D carrier-hopping prime/modified prime (CHP/MP) codes by extending a two-dimensional (2D) CHP code integrated with a one-dimensional (1D) MP code. The corresponding coder/decoder pairs were based on fiber Bragg gratings (FBGs) and tunable optical delay lines integrated with splitters/combiners. System performance was enhanced by the low cross correlation properties of the 3D code designed to avoid

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Zhang, J. G., and W. C. Kwong. "Effective design of optical code-division multiple access networks by using the modified prime code." Electronics Letters 33, no. 3 (1997): 229. http://dx.doi.org/10.1049/el:19970162.

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Yen, Chih-Ta, Ing-Jr Ding, and Cheng-Mu Tsai. "PERFORMANCE ANALYSIS OF SEVERAL QUASI-ORTHOGONAL CODES OPTICAL CDMA FOR RADIO-OVER-FIBER SYSTEM." Transactions of the Canadian Society for Mechanical Engineering 37, no. 3 (2013): 415–26. http://dx.doi.org/10.1139/tcsme-2013-0031.

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An optical code-division multiple-access (OCDMA) network for radio-over-fiber (RoF) transmissions was proposed. The network encoders/decoders (codecs) were structured based on arrayed-waveguide-grating (AWG) routers coded using modified prime codes (MPCs). In the proposed system, the lower in-phase cross correlation could reduce the beating noise, and in the proposed study, its performance was compared with that of a conventional system that uses M-sequence and Walsh-Hadamard codes. The performance of both systems was numerically evaluated by analyzing the effect of phase-induced-intensity noi

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Ismail, Morsy Ahmed Morsy, Abdulaziz Alsayyari, and Osama Hussien Galal. "Performance analysis of optical code division multiple access networks for multimedia applications using multilength weighted modified prime codes." Optical Engineering 58, no. 03 (2019): 1. http://dx.doi.org/10.1117/1.oe.58.3.035101.

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Zoualfaghari, M. H., and H. Ghafouri-Shiraz. "Uniform Cross-Correlation Modified Prime Code for Applications in Synchronous Optical CDMA Communication Systems." Journal of Lightwave Technology 30, no. 18 (2012): 2955–63. http://dx.doi.org/10.1109/jlt.2012.2207091.

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Morsy, Morsy Ahmed, and Abdulaziz S. Alsayyari. "Performance analysis of incoherent PPM‐OCDMA networks based on optimised modified prime code for multimedia applications." IET Communications 14, no. 22 (2020): 4014–21. http://dx.doi.org/10.1049/iet-com.2020.0155.

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Dissertations / Theses on the topic "Modified prime code"

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Wen-Jeng, Huang. "Spatial/Spectral OCDMA System Using Partial Modified Prime Code and Error Correcting Code." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-0207200621091100.

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Huang, Wen-Jeng, and 黃文政. "Spatial/Spectral OCDMA System Using Partial Modified Prime Code and Error Correcting Code." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/58970346936993346234.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>94<br>Code division multiple access (CDMA) plays an important role in communications technologies nowadays. In mobile communications, it has been well developed due to its advantage of multiple access, anti-jamming, high-level security, asynchronous transmission, multi-path resistance, and multi-rate transmission. In all-optical communications, many optical CDMA (OCDAM) systems are proposed and getting more and more attention. The early OCDMA network proposals were based on coded sequences of noncoherent pulses. The used optical orthogonal codes (OOCs) generally hav

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Niu, Chun-Tao, and 牛君濤. "A Novel Optical Code-Division-Multiple-Access Network Architecture with Spectral / Spatial Coding Scheme Using Partial Modified Prime Codes." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/67341812720001210067.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>93<br>Code-division-multiple-access ( CDMA ) plays an important role in communications technologies nowadays. Almost all the modern communications techniques apply the concept of CDMA. The CDMA technology in mobile communications field has already been well-developed. CDMA has advantages such as multiple access, anti-jamming, high-level security, asynchronous transmission, multi-path resistance, and multi-rate transmission. Nevertheless, the interference between users so-called the multiple-user interference ( MUI ) degenerates the system performance. The MUI increa

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BASILI, Silvia. "Gli attuali scenari del commercio internazionale dei prodotti agroalimentari, tra vecchie e nuove questioni di sicurezza alimentare: una riflessone comparatistica ta UE, USA e CINA." Doctoral thesis, 2018. http://hdl.handle.net/11393/251081.

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Il commercio dei prodotti agroalimentari ha assunto oggi una dimensione globale, che pone una serie di questioni su cui è necessario riflettere. Una di queste riguarda la sicurezza alimentare intesa nell'accezione di food safety, ossia come il diritto di ogni individuo a consumare cibo sano e sicuro. La sicurezza alimentare implica l'assenza di elementi estranei che sono riconducibili ai residui dei trattamenti antiparassitari, veterinari, contaminanti ambientali o ancora l'assenza di adulterazioni nel processo di produzione, che possono comportare un rischio per la salute dei consumatori.

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Book chapters on the topic "Modified prime code"

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Rowe, William. "Introduction." In Poets of Contemporary Latin America. Oxford University PressOxford, 2000. http://dx.doi.org/10.1093/oso/9780198158929.003.0001.

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Abstract For poets writing in Latin America since the 1950s there have been two main inheritances to be used, modified, or abandoned: the work of the avant-gardes and the tradition of politicized poetry. But whereas the latter is widely known, and associated in particular with the name of Pablo Neruda, the general reader is less likely to have come across the contributions of Latin American poets to the avant-garde tradition of experiment with language and form. Avant-gardism is regarded as a European phenomenon, with Surrealism and Dada as the prime examples, and Latin American poetry is take

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Jose, Lijo, M. Rajesh Khanna, D. Meganathan, and Praveen Kumar B T. "Web Based Parameter-Tampering on Shopping Site using BurpSuite Testing." In Artificial Intelligence and Communication Technologies. Soft Computing Research Society, 2022. http://dx.doi.org/10.52458/978-81-955020-5-9-51.

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Client’s web application’s infrastructure was monitored using several footprinting techniques and scanning of ports was done using n-map and other tools to get an idea of total network infrastructure of our client and several tools to get close enough to the web application were done as part of bug bounty. Among all performed attacks for example SQL injection, remote access, Cross-site scripting, etc. Web Based Parameter tampering attack was successfully deployed in-order to affect the integrity of their web application. Parameter Tampering on a web application is a vulnerability which is foun

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Collins, Robert O. "Plans and Dams." In The Waters of the Nile. Oxford University PressOxford, 1990. http://dx.doi.org/10.1093/oso/9780198217848.003.0007.

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Abstract The construction of a mighty dam at Aswan was a unilateral decision by the revolutionary government of Egypt in 1952, but even the revolutionary command council could not ignore the reality of the interests of other riparian States. Relations with Uganda had been normalized by the exchange of notes in May 1949 formally agreeing to the construction of the dam and power station at Owen Falls. Britain and Egypt had even revised their agreement of 1935 concerning the Lake Tana dam by the successful completion of the technical discussions in November 1946. The Sudan, however, was the most

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Conference papers on the topic "Modified prime code"

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Kwong, Wing C., Jian-Guo Zhang, and Guu-Chang Yang. "Optical code-division multiple-access coding architecture with 2n prime-sequence codes." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1994. http://dx.doi.org/10.1364/cleo_europe.1994.cthi3.

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Recent study1 shows that the performance of an optical code-division multipleaccess (CDMA) network cannot be evaluated by only considering the correlation properties of the selected optical pseudo-orthogonal codes.2,3 The coding architecture (i.e., the structures of the optical encoders and decoders) is another important factor to consider, since it affects the power budget and feasibility of the system. As a result, "tunable prime" and "modified 2 n " coding architectures, respectively, for the prime-sequence and 2 n codes have been proposed to improve the power-efficiency.1,4 Recently, "2 n

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Tan, Pengfei, Ye Lu, Huili Zhou, Yao Peng, Fan Gao, and Chuanqi Li. "Modified Synchronous Square Prime Code for SAC-OCDMA Systems Using New Partial Balanced Detection Technique." In 2018 26th International Conference on Systems Engineering (ICSEng). IEEE, 2018. http://dx.doi.org/10.1109/icseng.2018.8638172.

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Ma, Wenhua, Chao Zuo, Hongtu Pu, and Jintong L. Lin. "Asynchronous optical CDMA system with double hard limiters using frequency-time spreading modified prime code." In Asia-Pacific Optical and Wireless Communications Conference and Exhibit, edited by Wanyi Gu, Jianhui Zhou, and Jin-Yi Pan. SPIE, 2001. http://dx.doi.org/10.1117/12.445126.

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Elberg, Rafael, Denis Parra, and Mircea Petrache. "Long Tail Image Generation Through Feature Space Augmentation and Iterated Learning." In LatinX in AI at Computer Vision and Pattern Recognition Conference 2024. Journal of LatinX in AI Research, 2024. http://dx.doi.org/10.52591/lxai202406174.

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Image and multimodal machine learning tasks are very challenging to solve in the case of poorly distributed data. In particular, data availability and privacy restrictions exacerbate these hurdles in the medical domain. The state of the art in image generation quality is held by Latent Diffusion models, making them prime candidates for tackling this problem. However, a few key issues still need to be solved, such as the difficulty in generating data from under-represented classes and a slow inference process. To mitigate these issues, we propose a new method for image augmentation in long-tail

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Islam, Nazrul, Shahriar Quayyum, and Tasnim Hassan. "A Unified Constitutive Model for High Temperature Multiaxial Creep-Fatigue and Ratcheting Response Simulation of Alloy 617." In ASME 2014 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/pvp2014-28789.

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The study is developing a unified constitutive model for Alloy 617 which is the prime candidate material considered for intermediate heat exchanger (IHX) of next generation nuclear power plant. Alloy 617 can experience long term exposure to elevated temperatures as high as 950°C, however, the ASME design code (Subsection NH) does not include design provisions for this temperature range. In addition, the Draft Alloy 617 Code Case specifies that the inelastic design analysis for temperatures above 649°C must be based on unified constitutive model. Therefore, this study focuses on developing a un

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Takamaru, Yusuke, and Hiromasa Habuchi. "Optical N-parallel codes-shift-keying using generalized modified prime sequence codes and Hadamard codes." In 2013 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS). IEEE, 2013. http://dx.doi.org/10.1109/ispacs.2013.6704647.

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Kaur, Gurjit, and Neena Gupta. "Performance Analysis Of New Modified Prime Sequence Codes For OCDMA System." In 2007 IFIP International Conference on Wireless and Optical Communications Networks. IEEE, 2007. http://dx.doi.org/10.1109/wocn.2007.4284147.

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Swadesh, Mark, and M. S. Islam. "A new modified prime codes for higher user capacity in smart synchronous OCDMA network." In 2014 International Conference on Electrical Engineering and Information Communication Technology (ICEEICT). IEEE, 2014. http://dx.doi.org/10.1109/iceeict.2014.6919134.

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Eltaif, Tawfig, Hossam M. H. Shalaby, Sahbudin Shaari, and Mohammad M. N. Hamarsheh. "Performance analysis of successive interference cancellation scheme for optical CDMA using modified prime sequence codes." In Photonics Asia 2007, edited by Guoguang Mu, Feijun Song, Francis T. S. Yu, and Suganda Jutamulia. SPIE, 2007. http://dx.doi.org/10.1117/12.755327.

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Sun, Shaobo, and M. S. Leeson. "Transmission Performance of Spectrum-Sliced Incoherent 2-D FFH-OCDMA Systems Using Modified Prime-hop Codes." In 2009 WRI International Conference on Communications and Mobile Computing (CMC). IEEE, 2009. http://dx.doi.org/10.1109/cmc.2009.102.

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