Littérature scientifique sur le sujet « M-QAM MODULATION »
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Articles de revues sur le sujet "M-QAM MODULATION"
Ahmad, Husham Jawad. « Performance Evaluation and Simulation of M-Ary Quadrature Amplitude Modulation Schemes with VisSim/Comm Software ». Cihan University-Erbil Scientific Journal 3, no 2 (20 août 2019) : 58–63. http://dx.doi.org/10.24086/cuesj.v3n2y2019.pp58-63.
Texte intégralAli, Ahmed K., et Ergun Erçelebi. « An M-QAM Signal Modulation Recognition Algorithm in AWGN Channel ». Scientific Programming 2019 (12 mai 2019) : 1–17. http://dx.doi.org/10.1155/2019/6752694.
Texte intégralGiraudo, E. C., R. B. Filho et R. R. Scarabucci. « On the {m-QAM}2 modulation ». IEEE Communications Letters 5, no 10 (octobre 2001) : 426–28. http://dx.doi.org/10.1109/4234.957383.
Texte intégralZekry, Abdelhalim, Christena Ghandour, Nazmi A. Mohammed et S. El-Rabaie. « Hybrid modulation schemes for data transmission improvement of indoor visible light communication system ». International Journal of Engineering & ; Technology 7, no 4 (6 octobre 2018) : 2822. http://dx.doi.org/10.14419/ijet.v7i4.19423.
Texte intégralQuilindo Méndez, Cristian David, Eduar Fernando Hoyos Zúñiga et Gustavo Adolfo Gómez Agredo. « Efecto de la técnica de modulación M-QAM para una infraestructura de red convergente Radio sobre Fibra (RoF) ». Ingeniería y Desarrollo 39, no 1 (21 octobre 2021) : 66–85. http://dx.doi.org/10.14482/inde.39.1.621.3821.
Texte intégralARYANTA, DWI, ARSYAD RAMADHAN DARLIS et WIRDA SRI FARHANI. « Simulasi Sinkronisasi Carrier pada Modulasi Digital menggunakan Matlab ». ELKOMIKA : Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & ; Teknik Elektronika 2, no 2 (1 juillet 2014) : 100. http://dx.doi.org/10.26760/elkomika.v2i2.100.
Texte intégralMaharani, Tamara, Muhammad Agus Zainuddin et Sritrusta Sukaridhoto. « PENGUKURAN PSNR PADA TRANSMISI VIDEO DI KANAL TERAHERTZ MENGGUNAKAN QAM MODULATION ». KLIK - KUMPULAN JURNAL ILMU KOMPUTER 7, no 2 (28 juin 2020) : 154. http://dx.doi.org/10.20527/klik.v7i2.319.
Texte intégralMohammed, Ali Abdulwahhab, Li Yu, Manar Al-Kali et Desheng Wang. « Analysis of Amplify-and-Forward Cooperative Networks with Nakagami-m fading Channels For MRC Diversity Combining ». TELKOMNIKA Indonesian Journal of Electrical Engineering 16, no 3 (1 décembre 2015) : 546. http://dx.doi.org/10.11591/tijee.v16i3.1646.
Texte intégralYang, Li Ming, Jia Guo, Hong Wei Ding, Yong Wang, Hong Mei Li et Han Bai Shao. « Simulation Implementation and Analysis of the Performance of M-QAM by Using MATLAB ». Applied Mechanics and Materials 610 (août 2014) : 933–38. http://dx.doi.org/10.4028/www.scientific.net/amm.610.933.
Texte intégralWongroekdee, Sawitree, Kosin Chaiprathum, Virasit Imtawil et Puripong Suthisopapan. « LDPC Coded 2m-ary QAM for Ultra High Speed Communications ». Applied Mechanics and Materials 781 (août 2015) : 45–48. http://dx.doi.org/10.4028/www.scientific.net/amm.781.45.
Texte intégralThèses sur le sujet "M-QAM MODULATION"
A, Sani Negar. « M-PSK and M-QAM Modulation/Demodulation of UWB Signal Using Six-Port Correlator ». Thesis, Linköpings universitet, Fysik och elektroteknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-64413.
Texte intégralFernandes, Diogo. « Low-cost implementation techniques for generic square and cross M-QAM constellations ». Universidade Federal de Juiz de Fora, 2015. https://repositorio.ufjf.br/jspui/handle/ufjf/1555.
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CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
Este trabalho tem como objetivo apresentar técnicas com complexidade computacional reduzida para implementação em hardware do modulador de amplitude em quadratura M-ária (M-ary quadrature amplitude modulation - M-QAM) de elevada ordem, que pode ser viável para sistemas banda larga. As técnicas propostas abrangem as constelações M-QAM quadradas e cruzadas (número par e ímpar de bits), a regra de decisão abrupta (hard decison rule), derivação de constelações M-QAM de baixa ordem das de elevada ordem. A análise de desempenho em termos de taxa de bits errados (bit error rate - BER) é realizada quando os símbolos M-QAM são corrompidos por ruído Gaussiano branco aditivo (additive white Gaussian noise - AWGN) e ruído Gaussiano impulsivo aditivo (additive impulsive Gaussian noise - AIGN). Os resultados de desempenho da taxa de bits errados mostram que a perda de desempenho das técnicas propostas é, em média, inferior a 1 dB, o que é um resultado surpreendente. Além disso, a implementação das técnicas propostas em arranjo de portas programáveis em campo (field programmable gate array - FPGA) é descrita e analisada. Os resultados obtidos com as implementações em dispositivo FPGA mostram que as técnicas propostas podem reduzir consideravelmente a utilização de recursos de hardware se comparadas com as técnicas presentes na literatura. Uma melhoria notável em termos de redução da utilização de recursos de hardware é conseguida através da utilização da técnica de modulação M-QAM genérica em comparação com a técnica de regra de decisão heurística (heuristic decision rule - HDR) aprimorada e uma técnica previamente concebida, a tà c cnica HDR. Com base nas análises apresentadas, a técnica HDR aprimorada é menos complexa do que a técnica HDR. Finalmente, os resultados numéricos mostram que a técnica de modulação M-QAM genérica pode ser oito vezes mais rápida do que as outras duas técnicas apresentadas, quando um grande número de símbolos M-QAM (p. ex., > 1000) são transmitidos consecutivamente.
This work aims at introducing techniques with reduced computational complexity for hardware implementation of high order M-ary quadrature amplitude modulation (MQAM) which may be feasible for broadband communication systems. The proposed techniques cover both square and cross M-QAM constellations (even and odd number of bits), hard decision rule, derivation of low-order M-QAM constellations from high order ones. Performance analyses, in terms of bit error rate (BER) is carried out when the M-QAM symbols are corrupted by either additive white Gaussian noise (AWGN) or additive impulsive Gaussian noise (AIGN). The bit error rate performance results show that the performance loss of the proposed techniques is, on average, less than 1 dB, which is a remarkable result. Additionally, the implementation of the proposed techniques in field programmable gate array (FPGA) device is described and outlined. The results based on FPGA show that the proposed techniques can considerably reduce hardware resource utilization. A remarkable improvement in terms of hardware resource utilization reduction is achieved by using the generic M-QAM technique in comparison with the enhanced heuristic decision rule (HDR) technique and a previously designed technique, the HDR technique. Based on the analyses performed, the enhanced HDR technique is less complex than the HDR technique. Finally, the numerical results show that the generic M-QAM technique can be eight times faster than the other two techniques when a large number of M-QAM symbols (e.g., > 1000) are consecutively transmitted.
Ceballos, Emmanuel Gonzales. « A Novel Adaptive Multilevel - Quadrature Amplitude Modulation (M-QAM) Receiver Using Machine Learning to Mitigate Multipath Fading Channel Effects ». Thesis, California State University, Long Beach, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10784157.
Texte intégralThe demand for faster speed and greater signal strength of today’s wireless broadband technology evolved signaling techniques to improve spectral bandwidth efficiency. In wireless digital communications, higher-order of M-QAM technique has been employed to improve bandwidth and channel efficiency of the signaling. However, wireless broadband communications such as mobile phones and wireless access networks are prone to multipath fading channel. Higher-order M-QAM is very susceptible to this fading channel because it affects both the amplitude and carrier phase of the transmitted signal as it induces non-linearity.
In this study, an innovative approach in M-QAM demodulation technique has been proposed. This thesis investigated the performance of a proposed modified Costas Loop M-QAM receiver that employed Machine Learning using multi-layer perceptron (MLP) with error-back propagation (EBP) as an adaptive amplitude fading estimator and, using fuzzy logic as loop filter in the phase lock loop (PLL) circuit that estimated the distorted carrier phase of a received signal. A computer simulation of the proposed receiver was developed to investigate the performance of the receiver’s signal recovery over Rayleigh fading channel. The results showed that the ML algorithm tracked well the phase noise and the bit-error rate (BER) were comparable to the theoretical M-QAM curve on certain values of signal-to-noise (SNR) levels.
Abdurrhman, Ahmed B. M. « Error resilient video communications using high level M-QAM : modelling and simulation of a comparative analysis of a dual-priority M-QAM transmission system for H.264/AVC video applications over band-limited and error-phone channels ». Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4913.
Texte intégralAbdurrhman, Ahmed B. M. « Error relilient video communications using high level M-QAM. Modelling and simulation of a comparative analysis of a dual-priority M-QAM transmission system for H.264/AVC video applications over band-limited and error-phone channels ». Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4913.
Texte intégralForestier, Stéphane. « Gestion dynamique de la génération de puissance en hyperfréquence pour des modulations numériques : Applications à l'optimisation des performances d'un amplificateur millimétrique ». Limoges, 2003. http://aurore.unilim.fr/theses/nxfile/default/0550ccba-ec85-4e00-a664-f090f687c9d2/blobholder:0/2003LIMO0019.pdf.
Texte intégralJHA, MOHIT. « DESIGN OF WIRELESS COMMUNICATION SYSTEM ON SDR USING M-QAM MODULATION ». Thesis, 2018. http://dspace.dtu.ac.in:8080/jspui/handle/repository/16530.
Texte intégralChapitres de livres sur le sujet "M-QAM MODULATION"
Lee, Sang-Do, et Young-Chai Ko. « Hybrid M-QAM with Adaptive Modulation and Selection Combining in MIMO Systems ». Dans Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 91–100. Berlin, Heidelberg : Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-11284-3_10.
Texte intégralChandra, A., et C. Bose. « Error Probability for Coherent Modulations in Rician Fading Channel ». Dans Networking and Telecommunications, 1741–52. IGI Global, 2010. http://dx.doi.org/10.4018/978-1-60566-986-1.ch112.
Texte intégralLi, Huiqiong, Ying Wei et Changjian Zhu. « Convolutional Neural Network Analysis for Modulation Classification of Wireless Communication Signal ». Dans Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde221103.
Texte intégralYou, Cheolwoo, et Daesik Hong. « Learning Algorithms for Complex-Valued Neural Networks in Communication Signal Processing and Adaptive Equalization as its Application ». Dans Complex-Valued Neural Networks, 194–235. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-214-5.ch009.
Texte intégralGupta, Yogendra, et Sandeep Saini. « Thermometer to Gray Encoders ». Dans Advances in Computer and Electrical Engineering, 323–35. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-6627-6.ch013.
Texte intégralAbualhaol, Ibrahim Y., et Mustafa M. Matalgah. « Resource Allocation for a Cooperative Broadband MIMO-OFDM System ». Dans Cooperative Communications for Improved Wireless Network Transmission, 382–98. IGI Global, 2010. http://dx.doi.org/10.4018/978-1-60566-665-5.ch014.
Texte intégralActes de conférences sur le sujet "M-QAM MODULATION"
Jia, Haowei, et Leila Musavian. « Performance Analysis for NOMA with M-QAM Modulation ». Dans 2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring). IEEE, 2020. http://dx.doi.org/10.1109/vtc2020-spring48590.2020.9129150.
Texte intégralGomes, Marco, Francisco Cercas, Vitor Silva et Martin Tomlinson. « Efficient M-QAM Transmission Using Compacted Magnitude Modulation Tables ». Dans IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference. IEEE, 2008. http://dx.doi.org/10.1109/glocom.2008.ecp.895.
Texte intégralZhendong, Chou, Jiang Weining, Xiang Changbo et Li Min. « Modulation recognition based on constellation diagram for M-QAM signals ». Dans 2013 IEEE 11th International Conference on Electronic Measurement & Instruments (ICEMI). IEEE, 2013. http://dx.doi.org/10.1109/icemi.2013.6743041.
Texte intégralKalantari, Ashkan, Christos Tsinos, Mojtaba Soltanalian, Symeon Chatzinotas, Wing-Kin Ma et Bjorn Ottersten. « MIMO directional modulation M-QAM precoding for transceivers performance enhancement ». Dans 2017 IEEE 18th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC). IEEE, 2017. http://dx.doi.org/10.1109/spawc.2017.8227801.
Texte intégralGaire, Sunil Kumar, et Saleh Faruque. « Performance analysis of orthogonal coded M-ary QAM modulation technique ». Dans 2017 51st Annual Conference on Information Sciences and Systems (CISS). IEEE, 2017. http://dx.doi.org/10.1109/ciss.2017.7926152.
Texte intégralQueiroz, Wamberto J. L., Waslon T. A. Lopes, Francisco Madeiro et Marcelo S. Alencar. « Bit error probability of M-QAM and I × J-QAM modulation schemes in Nakagami fading ». Dans International Microwave and Optoelectronics Confererence. IEEE, 2007. http://dx.doi.org/10.1109/imoc.2007.4404381.
Texte intégralWang, Shiqiang, Qingyang Song, Lei Guo et Abbas Jamalipour. « Constellation mapping for physical-layer network coding with M-QAM modulation ». Dans GLOBECOM 2012 - 2012 IEEE Global Communications Conference. IEEE, 2012. http://dx.doi.org/10.1109/glocom.2012.6503815.
Texte intégralSadinov, S. M. « Simulation study of M-ARY QAM modulation techniques using Matlab/Simulink ». Dans 2017 40th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO). IEEE, 2017. http://dx.doi.org/10.23919/mipro.2017.7973486.
Texte intégralYan, Xiao, Guoyu Zhang, Jie Luo, Hsiao-Chun Wu, Qian Wang et Yiyan Wu. « Graph-based Automatic Modulation Classifier for M-ary Generalized QAM Signals ». Dans 2019 3rd International Conference on Imaging, Signal Processing and Communication (ICISPC). IEEE, 2019. http://dx.doi.org/10.1109/icispc.2019.8935869.
Texte intégralCai, Tian, Cheng Wang, Gaofeng Cui et Weidong Wang. « Constellation-wavelet transform automatic modulation identifier for M-ary QAM signals ». Dans 2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC). IEEE, 2015. http://dx.doi.org/10.1109/pimrc.2015.7343297.
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