Layered constellation generation method based on SIM-OFDM

Xin Wang; Qi Zhang; Xiangjun Xin; Ran Gao; Qinghua Tian; Feng Tian; Yongjun Wang; Xishuo Wang; Ying Tao; Wei Zhang

doi:10.1016/j.optcom.2020.126350

Layered constellation generation method based on SIM-OFDM

Xin Wang, Qi Zhang^*, Xiangjun Xin, Ran Gao, Qinghua Tian, Feng Tian, Yongjun Wang, Xishuo Wang, Ying Tao, Wei Zhang

^*Corresponding author for this work

School of Information and Electronics

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A layered QAM constellation generation method is proposed and it is applied to the SIM-OFDM system. In this method, the bit sequence is grouped layer by layer according to the specific bit and mapped to the corresponding constellation points. In this paper, the 24QAM-SIM-OFDM, 48QAM-SIM-OFDM, 80QAM-SIM-OFDM and 120QAM-SIM-OFDM constellations are generated by this method, and their performance is analyzed. The result shows that the BER of 80QAM-SIM-OFDM is lower than that of 64QAM-SIM-OFDM when SNR is low. And when BER is 3.8×10⁻³, the SNR requirement of layered 80QAM-SIM-OFDM signal is about 0.12 dB lower than that of 64QAM-SIM-OFDM, and the SNR requirement of layered 120QAM-SIM-OFDM signal is about 3 dB lower than that of 128QAM-SIM-OFDM.

Original language	English
Article number	126350
Journal	Optics Communications
Volume	477
DOIs	https://doi.org/10.1016/j.optcom.2020.126350
Publication status	Published - 15 Dec 2020

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10.1016/j.optcom.2020.126350

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title = "Layered constellation generation method based on SIM-OFDM",

abstract = "A layered QAM constellation generation method is proposed and it is applied to the SIM-OFDM system. In this method, the bit sequence is grouped layer by layer according to the specific bit and mapped to the corresponding constellation points. In this paper, the 24QAM-SIM-OFDM, 48QAM-SIM-OFDM, 80QAM-SIM-OFDM and 120QAM-SIM-OFDM constellations are generated by this method, and their performance is analyzed. The result shows that the BER of 80QAM-SIM-OFDM is lower than that of 64QAM-SIM-OFDM when SNR is low. And when BER is 3.8×10−3, the SNR requirement of layered 80QAM-SIM-OFDM signal is about 0.12 dB lower than that of 64QAM-SIM-OFDM, and the SNR requirement of layered 120QAM-SIM-OFDM signal is about 3 dB lower than that of 128QAM-SIM-OFDM.",

author = "Xin Wang and Qi Zhang and Xiangjun Xin and Ran Gao and Qinghua Tian and Feng Tian and Yongjun Wang and Xishuo Wang and Ying Tao and Wei Zhang",

note = "Publisher Copyright: {\textcopyright} 2020",

year = "2020",

month = dec,

day = "15",

doi = "10.1016/j.optcom.2020.126350",

language = "English",

volume = "477",

journal = "Optics Communications",

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T1 - Layered constellation generation method based on SIM-OFDM

AU - Wang, Xin

AU - Zhang, Qi

AU - Xin, Xiangjun

AU - Gao, Ran

AU - Tian, Qinghua

AU - Tian, Feng

AU - Wang, Yongjun

AU - Wang, Xishuo

AU - Tao, Ying

AU - Zhang, Wei

PY - 2020/12/15

Y1 - 2020/12/15

N2 - A layered QAM constellation generation method is proposed and it is applied to the SIM-OFDM system. In this method, the bit sequence is grouped layer by layer according to the specific bit and mapped to the corresponding constellation points. In this paper, the 24QAM-SIM-OFDM, 48QAM-SIM-OFDM, 80QAM-SIM-OFDM and 120QAM-SIM-OFDM constellations are generated by this method, and their performance is analyzed. The result shows that the BER of 80QAM-SIM-OFDM is lower than that of 64QAM-SIM-OFDM when SNR is low. And when BER is 3.8×10−3, the SNR requirement of layered 80QAM-SIM-OFDM signal is about 0.12 dB lower than that of 64QAM-SIM-OFDM, and the SNR requirement of layered 120QAM-SIM-OFDM signal is about 3 dB lower than that of 128QAM-SIM-OFDM.

AB - A layered QAM constellation generation method is proposed and it is applied to the SIM-OFDM system. In this method, the bit sequence is grouped layer by layer according to the specific bit and mapped to the corresponding constellation points. In this paper, the 24QAM-SIM-OFDM, 48QAM-SIM-OFDM, 80QAM-SIM-OFDM and 120QAM-SIM-OFDM constellations are generated by this method, and their performance is analyzed. The result shows that the BER of 80QAM-SIM-OFDM is lower than that of 64QAM-SIM-OFDM when SNR is low. And when BER is 3.8×10−3, the SNR requirement of layered 80QAM-SIM-OFDM signal is about 0.12 dB lower than that of 64QAM-SIM-OFDM, and the SNR requirement of layered 120QAM-SIM-OFDM signal is about 3 dB lower than that of 128QAM-SIM-OFDM.

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DO - 10.1016/j.optcom.2020.126350

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SN - 0030-4018

VL - 477

JO - Optics Communications

JF - Optics Communications

M1 - 126350

ER -

Layered constellation generation method based on SIM-OFDM

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