Comparison of BER Performance for M-ary QAM and PSK on DWT-based OFDM System with PTS Technique Through AWGN Channel

Suhartomo, Antonius; Vincent, Vincent

doi:10.1109/icsecc51444.2020.9557556

Cited by 7 publications

(2 citation statements)

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“…This performance disparity becomes more pronounced as the order rises in QAM, due to the unchanging distance between each combination within the QAM constellation diagram. Conversely, the distance between constellation points in PSK is smaller [10]. In comparison to QAM technology, high-order PSK technology exhibits greater sensitivity to phase deviations.…”

Section: Psk Technology and Analysismentioning

confidence: 99%

Adaptive simulation of digital signal transmission

2024

ACE

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High-order modulated signals have lower anti-interference ability than low-order modulated signals with the same modulation method and conditions. In situations with low signal-to-noise ratios, the quality of high-order signals can degrade significantly. An algorithm capable of intelligently switching the modulation order based on the current signal-to-noise ratio can effectively address this issue. This paper presents an adaptive signal transmission algorithm that intelligently selects different orders of Phase shift keying (PSK) modulation depending on varying signal noise ratio (SNR) conditions, while ensuring the user-specified upper limit of bit error rate (BER). This approach guarantees signal transmission quality. The algorithm is implemented in Python and involves simulating the relationship curve between SNR and BER for different PSK orders. This simulation is combined with theoretical transmission rate analysis, resulting in an adaptive algorithm that intelligently switches modulation methods under complex conditions to meet transmission requirements. The proposed algorithm dynamically adapts to diverse user requirements for signal-to-noise ratios in various environments. It achieves this by adjusting the modulation order, calculating theoretical transmission times based on the given signal frequency, and ultimately verifying the actual bit error rate through transmission and testing. Upon testing, this design successfully achieved its intended goals.

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Section: Psk Technology and Analysismentioning

confidence: 99%

Adaptive simulation of digital signal transmission

2024

ACE

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“…Phase shift keying, also known as PSK, means modulating the phase of the carrier wave and leaving the amplitude without any changes [13]. 2PSK is a form of phase-shift keying, which uses two initial carriers separated by 180 to transmit binary information.…”

Section: Pskmentioning

confidence: 99%

SERs of Different Modulation Systems in 1G-4G

Chen

Ding

Ruan

2022

J. Phys.: Conf. Ser.

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The Digital sub-band system is an indispensable technology for the development of modern society, which has a wide range of applications. This work is particularly concerned with developing applications for modulation techniques used in mobile communication. Based on MATLAB, this paper compared the modulation and demodulation of 2ASK, 2FSK, 2PSK, and QPSK horizontally and analysed the practical and theoretical error rates. With the constellation maps of 16QAM, 32QAM, 64QAM, and 256QAM, the relationship between the error rate and the signal-to-noise ratio was studied. In binary modulation systems, 2PSK has the best noise resistance and requires 6dB less SNR than 2ASK when employing the same demodulation approach. In addition, this paper outlined the technologies and modulation standards employed in the development of 1G-4G. To make the comparison clearer, the advantage, disadvantages, and modulation comparisons among 1G-5G are displayed. The analysis and research of digital sub-band modulation technology is the basis for developing new technology in the future.

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