A multilayers adaptive ALACO-OFDM for spectral efficiency improvement using PSO algorithm in visible light communication systems

被引：0

作者：

Hameed A.A. ^{[1
]}

Safar A.M. ^{[1
]}

Nordin J. ^{[1
]}

Abas M. ^{[2
]}

Nawawi N. ^{[1
]}

机构：

[1] Universiti Malaysia Perlis, Perlis, Arau

[2] University of Diyala, Diyala, Baqubah

来源：

Journal of Optical Communications | 2023年 / 44卷 / s1期

关键词：

ALACO-OFDM; LACO-OFDM; OFDM; PSO; VLC;

D O I：

10.1515/joc-2020-0236

中图分类号：

学科分类号：

摘要：

In this paper, we propose a new adaptive layered asymmetrically-clipped optical orthogonal frequency division multiplexing (ALACO-OFDM) technique as a method to improve the spectral efficiency of optical system, especially visible light communication (VLC). Particle swarm optimisation (PSO)-based LACO-OFDM method is used for this purpose and the channel capacities are studied. Simulations using variable layers are carried out to validate the theoretical steps. The simulation results indicate that the ALACO-OFDM technique has significantly improve the spectral efficiency compared to previous techniques such as ACO-OFDM. Moreover, it is shown that channel capacities of different layers are significantly improved when electrical power is increased. © 2023 Walter de Gruyter GmbH. All rights reserved.

引用

页码：S1487 / S1495

页数：8

共 29 条

[21]

Sun Y., Yang F., Gao J., Novel dimmable visible light communication approach based on hybrid LACO-OFDM, J Lightwave Technol, 36, pp. 4942-4951, (2018)

[22]

Zhang T., Ji H., Ghassemlooy Z., Tang X., Lin B., Qiao S., Spectrum-efficient triple-layer hybrid optical OFDM for IM/DD-Based optical wireless communications, IEEE Access 2020, 8, pp. 10352-10362

[23]

Yang F., Sun Y., Gao J., Adaptive LACO-OFDM with variable layer for visible light communication, IEEE Photon J, 9, pp. 1-8, (2017)

[24]

Prasad S., Jayabalan R., PAPR reduction in OFDM using scaled particle swarm optimisation based partial transmit sequence technique, J Eng, 2019, pp. 3460-3468, (2019)

[25]

Eberhart R., Kennedy J., A new optimizer using particle swarm theory, MHS’95 Proceedings of the Sixth International Symposium on Micro Machine and Human Science, pp. 39-43, (1995)

[26]

Marini F., Walczak B., Particle swarm optimization (PSO). A tutorial, Chemometr Intell Lab Syst, 149, pp. 153-165, (2015)

[27]

Li X., Mardling R., Armstrong J., Channel capacity of IM/DD optical communication systems and of ACO-OFDM, 2007 IEEE International Conference on Communications, pp. 2128-2133, (2007)

[28]

Armstrong J., Schmidt B.J., Comparison of asymmetrically clipped optical OFDM and DC-biased optical OFDM in AWGN, IEEE Commun Lett, 12, pp. 343-345, (2008)

[29]

Tsonev D., Videv S., Haas H., Unlocking spectral efficiency in intensity modulation and direct detection systems, IEEE J Sel Area Commun, 33, pp. 1758-1770, (2015)

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