Paper
25 January 2024 BER performance of QPSK, 16-APSK and 16-QAM E-band photon-assisted millimeter wave wireless system in Rician channel
Jiazhi Mao
Author Affiliations +
Abstract
Photon-assisted millimeter wave system can improve real-time transmission performance of terahertz radio signals. And wireless communication is the uppermost form in nowadays communication industry. However, it is necessary to get over the multipath effect subjected to signal during wireless channel transmission. Firstly, the impact of multipath effect and the cause of frequency selective fading are introduced. Then the principle of photon-assisted mm-wave wireless transmission system is described. In this paper, we mainly focus on the frequency selective fading caused by delay extension in multipath effects, as well as the ISI and constellation distortion which the frequency selective fading generates. Here we have simulated the Rician fading channel by MATLAB, and established QPSK, 16-APSK and 16-QAM modulation techniques. Next evaluating the performance to resist frequency selective fading of these three modulation format photon-assisted mm-wave system by comparing their BER and constellation distortion. The performance has been concluded based on BER vs. MaxPathDelay and constellations output for QPSK, 16-APSK and 16-QAM over Rician channel is that QPSK is better than 16-APSK and 16-QAM. Because QPSK system over Rician channel at MaxPathDelay=9×10-10 s, BER=0.025. When MaxPathDelay=15×10-10, only the constellation of QPSK system does not occur significant distortion.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Jiazhi Mao "BER performance of QPSK, 16-APSK and 16-QAM E-band photon-assisted millimeter wave wireless system in Rician channel", Proc. SPIE 12972, International Academic Conference on Optics and Photonics (IACOP 2023), 129720C (25 January 2024); https://doi.org/10.1117/12.3022096
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KEYWORDS
Modulation

Extremely high frequency

Modulation frequency

Distortion

Digital signal processing

Homodyne detection

Phase modulation

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