Relevant bibliographies by topics / 16-APSK

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic '16-APSK'

Author: Grafiati
Published: 4 June 2025
Last updated: 23 June 2025

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Journal articles on the topic "16-APSK"

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Kulikov, Gennady V., Xuan Kh Dang, and Andrey A. Lelyukh. "Optimization of signal constellations with amplitude-phase shift keying in communication channels with non-fluctuating interference." Russian Technological Journal 13, no. 1 (2025): 76–88. https://doi.org/10.32362/2500-316x-2025-13-1-76-88.

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Objectives. Multi-position amplitude-phase shift keying (APSK) with a ring-shaped signal constellation is one of the most effective ways for transmitting discrete information in satellite systems. The use of APSK is regulated by several standards. The main are DVB-S2 and VSAT which define both the modulation parameters, and the parameters of the signal constellations. The aim of the paper is to determine the best constellations of 16-APSK and 32-APSK, and provide a minimum BER for cases when the communication channel, along with noise, contains non-fluctuating interference.Methods. Methods of statistical radio engineering, the theory of optimal signal reception, and computer modeling were used.Results. The optimization of ring-shaped constellations of 16-APSK and 32-APSK signals is attained by changing the distribution of points along the radius and phase for a case in which the communication channel, along with noise, contains non-fluctuating interference: frequency-shift keyed, retransmitted, phase-shift keyed, and harmonic ones. The best constellations of 16-APSK and 32-APSK are determined, and a minimum bit error rate is provided.Conclusions. In order to improve the quality of communication in information transmission systems in the presence of non-fluctuating interference, the existing constellations 16-APSK (4, 12) and 32-APSK (4, 12, 16) can be used by changing the ratios between the radii of circles 2.5 for 16-APSK and 2.5/3.9 for 32-APSK. Due to the more efficient use of signal power, the use of constellations with a zero-amplitude point for 16-APSK allows reception noise immunity to be increased. For example, when using constellation (1, 5, 10), the energy gain compared to the standard constellation (4, 12) can reach 1 dB.
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Kulikov, G. V., X. Kh Dang, and A. G. Kulikov. "Effect of synchronization system errors on the reception noise immunity of amplitude-phase shift keyed signals." Russian Technological Journal 11, no. 3 (2023): 30–37. http://dx.doi.org/10.32362/2500-316x-2023-11-3-30-37.

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Objectives. An urgent task in the context of modern radio and television systems is to improve the quality and quantity of transmitted information. For example, the use of multiple amplitude-phase shift keyed (APSK) signals—16-APSK and 32-APSK—in digital satellite television systems of the Digital Video Broadcasting-Satellite2 (DVB-S2) standard made it possible to transmit 30% more data in the same frequency bands in comparison with the previous DVB-S standard. Such increases in information transmission rates impose more stringent requirements on hardware. An important role in the reception of APSK signals, as well as the signals of other coherent signal processing systems, is played by the stability of synchronization systems. The presence of operational errors can significantly reduce the quality of information reception. The aim of the present work was to analyze the effect of phase and clock synchronization errors on the reception noise immunity of APSK signals with a ring signal constellation structure.Methods. The study used statistical radio engineering methods informed by optimal signal reception theory.Results. The effect of phase and clock synchronization errors on the reception noise immunity of APSK signals having a signal constellation ring structure is analyzed. The dependencies of the bit error probability on the magnitude of the phase shift and the clock offset were characterized. The effect of synchronization errors on reception quality were compared with the known results for quadrature amplitude modulation (QAM) signals.Conclusions. At an acceptable energy loss of no more than 1 dB, the critical phase error can be considered as 2°-3°, while the critical clock error is 3-4%. A coherent receiver of APSK signals is more sensitive to the phase error of reference oscillations than a similar receiver of QAM signals, whereas clock errors have the same effect on the reception quality of these signals.
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Wei, Ruey-Yi, and Xin-Jie Wang. "Differential 16-QAM and 16-APSK for Uplink Massive MIMO Systems." IEEE Wireless Communications Letters 7, no. 2 (2018): 170–73. http://dx.doi.org/10.1109/lwc.2017.2763143.

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Paramonov, A. A., V. M. Nguyen, and M. T. Nguyen. "Multi-task neural network for solving the problem of recognizing the type of QAM and PSK modulation under parametric a priori uncertainty." Russian Technological Journal 11, no. 4 (2023): 49–58. http://dx.doi.org/10.32362/2500-316x-2023-11-4-49-58.

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Objectives. Automatic modulation recognition of unknown signals is an important task for various fields oftechnology such as radio control, radio monitoring, and identification of interference and sources of radio emission. The paper aims to develop a method for recognizing the types of signal modulation under conditions of parametric a priori uncertainty, including the uncertainty of carrier frequency- and initial signal phase values. An additional task consists in estimating the offset values of the carrier frequency or signal phase at the initial stage of the recognition process.Methods. A multi-task learning with artificial neural network and the theory of cumulants of random variables are used.Results. For signals with a carrier frequency and initial phase shift, cumulant approaches for QAM-8, APSK-16, QAM-64, and PSK-8 modulations are calculated. A multi-task learning with artificial neural network using cumulant features and a data standardization algorithm is presented. The results of the experiment show that using multi-task learning with an artificial neural network provides high accuracy of recognizing QAM-8 and APSK-16, QAM-64 and PSK-8 modulations with small mismatches of the carrier frequency or initial phase. The accuracy of determining the offset values from the carrier frequency or the initial phase for QAM-8, APSK-16, QAM-64, and PSK-8 modulation is high.Conclusions. The multi-task learning with neural network using high-order signal cumulants makes it possible not only to recognize modulation types with high accuracy under conditions of a priori uncertainty of signal parameters, but also to determine the offset values of carrier frequency or initial signal phase from expected values.
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Lee, Jaeyoon, Yeonsoo Jang, and Dongweon Yoon. "Approximated Soft-Decision Demapping Algorithm for Coded 4+12+16 APSK." Journal of Korea Information and Communications Society 37A, no. 9 (2012): 738–45. http://dx.doi.org/10.7840/kics.2012.37a.9.738.

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Chow, Y. C., A. R. Nix, and J. P. McGeehan. "Analysis of 16-APSK modulation in AWGN and Rayleigh fading channel." Electronics Letters 28, no. 17 (1992): 1608. http://dx.doi.org/10.1049/el:19921023.

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Wei, Ruey-Yi, and Mao-Chao Lin. "Modified decision feedback differential detection for differentially encoded 16 APSK signals." Electronics Letters 34, no. 4 (1998): 336. http://dx.doi.org/10.1049/el:19980334.

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Fan, Sujie, Hui Wang, Yan Li, et al. "Optimal 16-Ary APSK Encoded Coherent Optical OFDM for Long-Haul Transmission." IEEE Photonics Technology Letters 25, no. 13 (2013): 1199–202. http://dx.doi.org/10.1109/lpt.2013.2262042.

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DUPÁK, Denis, Juraj GAZDA, Dušan KOCUR, and Mário PETRÍK. "Optimization of 16-APSK by Maximizing Mutual Information Criteria in SC-FDMA Communication Systems." Acta Electrotechnica et Informatica 14, no. 1 (2014): 3–8. http://dx.doi.org/10.15546/aeei-2014-0001.

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Rakhimova, A. A., K. S. Chezhimbaeva, and J. M. Garmashova. "MODELING OF 16-APSK MODULATED SIGNALS FOR USE IN DVB STANDARD SATELLITE SYSTEMS." Вестник Алматинского университета энергетики и связи, no. 2 (2022): 101–10. http://dx.doi.org/10.51775/2790-0886_2022_57_2_101.

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Dissertations / Theses on the topic "16-APSK"

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Rice, Michael, Chad Josephson, and Erik Perrins. "OPTIMIZING CODED 16-APSK FOR AERONAUTICAL MOBILE TELEMETRY." International Foundation for Telemetering, 2017. http://hdl.handle.net/10150/627010.

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This paper investigates the application of 16-APSK modulation to aeronautical mobile telemetry. The peak-to-average power ratio vs. code rate tradeoff is mapped to an optimization problem involving spectral efficiency and the constellation parameters. The optimization results produce a theoretically optimum solution that is 3.95 times more spectrally efficient as uncoded SOQPSK-TG. When implementation losses and the available IRIG 106 LDPC code rates are factored in, the advantage drops to 3.20 times the spectral efficiency of SOQPSK-TG.
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Menezes, Júnior José Clair. "ESTUDO DE CÓDIGOS LDPC EM SISTEMAS OFDM COM MODULAÇÕES 16-APSK SOBRE CANAL RAYLEIGH." Universidade Federal de Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/5433.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>In this master s thesis, a wireless communication scheme with a single transmit and single receive antenna, SISO case, with use of the OFDM multicarrier technique and application of LDPC coding was considered. It is well known that one of the biggest challenge related to OFDM system refers to the reduction of the peak-to-average power ratio (PAPR) factor. Thus this master s thesis proposes the use of 16-APSK and 16-QAM modulations by aiming to mitigate the PAPR factor. It is also considered the use of LDPC codes to evaluate the performance of bit error rate (BER) versus signal-to-noise ratio (SNR) performance for the 16-QAM, A16- QAM and 16-APSK constellations. The LDPC codes were adopted since they are one of the most effective methods of channel coding presented in the literature. Monte Carlo simulations were performed in AWGN and Rayleigh fading channels in order to evaluate the system performance in terms of BER × SNR and the PAPR factor analysis from the perspective of CCDF curves. Results reveal that with the use of LDPC codes associated with the use of 16-APSK constellations in multicarrier systems promotes BER performance gain and also reduction of the PAPR factor.<br>Nesta dissertação foi considerado um esquema de comunicação sem fio, com uma antena transmissora e uma antena receptora, caso SISO, com uso da técnica multiportadora OFDM e aplicação de codificação LDPC. Sabe-se que um dos maiores desafios na utilização do sistema OFDM refere-se à redução do fator razão de potência de pico e potência média (PAPR). Assim, nesta dissertação de mestrado propõe-se o emprego de modulações 16-APSK e A16-QAM com intuito de mitigar esse fator. Considera-se também o emprego de códigos LDPC para melhorar o desempenho de taxa de erro de bit (BER) versus razão sinal-ruído (SNR) para as constelações 16-QAM, A16-QAM e 16-APSK. Os códigos LDPC foram adotados por serem um dos mais eficazes métodos de codificação de canal apresentados na literatura. Foram realizadas simulações do tipo Monte Carlo em canais AWGN e com desvanecimento do tipo Rayleigh para se avaliar o desempenho do sistema em termos de curvas de BER × SNR e o fator PAPR sob a perspectiva de curvas de CCDF. Os resultados revelam que o emprego de códigos LDPC associados ao uso de constelacões 16-APSK em sistemas multiportadora promovem ganhos na taxa de erros e redução no fator PAPR.
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Book chapters on the topic "16-APSK"

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Kim, Youngguk, and Heung-Gyoon Ryu. "Improvement of the MCMA Blind Equalization Performance Using the Coordinate Change Method in 16-APSK." In Grid and Pervasive Computing. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38027-3_41.

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Conference papers on the topic "16-APSK"

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Huang, Tao, Jianping Li, Yuwen Qin, et al. "Experimental demonstration of optical waveform transmission with multiple-eigenvalue 16-APSK modulation." In CLEO: Applications and Technology. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_at.2024.jtu2a.89.

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We experimentally demonstrate the optical waveform transmission with multiple eigenvalues and parameter optimization, and the transmission of 30-eigenvalue 8-ns soliton pulses with 16-APSK over 200km NZ-DSF has achieved with BER of 5.9E-3.
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Watkins, Gavin T. "A Class E Digital Transmitter for 16-APSK." In 2018 13th European Microwave Integrated Circuits Conference (EuMIC). IEEE, 2018. http://dx.doi.org/10.23919/eumic.2018.8539917.

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Watkins, Gavin T. "A Class E Digital Transmitter for 16-APSK." In 2018 48th European Microwave Conference (EuMC). IEEE, 2018. http://dx.doi.org/10.23919/eumc.2018.8541797.

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Twitchell, Autumn, and Michael Rice. "On Alamouti-Encoded 16-APSK in Aeronautical Mobile Telemetry." In MILCOM 2021 - 2021 IEEE Military Communications Conference (MILCOM). IEEE, 2021. http://dx.doi.org/10.1109/milcom52596.2021.9653045.

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Dupak, D., D. Kocur, and J. Gazda. "Optimization of 16-APSK modulation for SC-FDMA transmission system." In 2013 23rd International Conference Radioelektronika (RADIOELEKTRONIKA 2013). IEEE, 2013. http://dx.doi.org/10.1109/radioelek.2013.6530926.

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Cho, Kyongkuk, Kwangmin Hyun, Dongweon Yoon, SangKyu Park, and Soobum Cho. "An Approximated Soft Decoding Algorithm of 16-APSK Signal for DVB-S2." In 2007 Digest of Technical Papers International Conference on Consumer Electronics. IEEE, 2007. http://dx.doi.org/10.1109/icce.2007.341443.

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Gomes, Marco, Vitor Silva, Francisco Cercas, and Martin Tomlinson. "Low bBack-off 16-APSK transmission using magnitude modulation and symbol quantization." In 2008 IEEE International Workshop on Satellite and Space Communications (IWSSC). IEEE, 2008. http://dx.doi.org/10.1109/iwssc.2008.4656796.

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Manimegalai, C. T., and R. Kumar. "Efficacy of 16-APSK modulation for Multiband Pulsed-OFDM UWB-communication systems." In 2012 World Congress on Information and Communication Technologies (WICT). IEEE, 2012. http://dx.doi.org/10.1109/wict.2012.6409066.

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Chayratsami, Pornpimon, and Sorapong Thuaykaew. "The optimum ring ratio of 16-APSK in LTE uplink over nonlinear system." In 2014 16th International Conference on Advanced Communication Technology (ICACT). Global IT Research Institute (GIRI), 2014. http://dx.doi.org/10.1109/icact.2014.6779189.

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Lee, Jaeyoon, Dongweon Yoon, Sang Kyu Park, and Sang Goo Kim. "Error Performance Analysis for 4+12+16 APSK Signal over a Satellite Channel." In 2009 Fourth International Conference on Digital Telecommunications (ICDT). IEEE, 2009. http://dx.doi.org/10.1109/icdt.2009.24.

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