Ergodic Channel Capacity of PPM-Coded Optical MIMO Communications Under Combined Effects

The ergodic channel capacity of wireless optical multiple-input multiple-output (MIMO) system with pulse position modulation (PPM) is investigated. The combined effects of atmospheric turbulence, atmospheric attenuation, pointing error and channel spatial correlation are taken into consideration. Th...

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Main Authors: Minghua Cao, Yue Zhang, Zhongjiang Kang, Huiqin Wang
Format: Article
Language:English
Published: Polish Academy of Sciences 2021-09-01
Series:International Journal of Electronics and Telecommunications
Subjects:
Online Access:https://journals.pan.pl/Content/121569/PDF/61_2654_Cao_skl1.pdf
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author Minghua Cao
Yue Zhang
Zhongjiang Kang
Huiqin Wang
author_facet Minghua Cao
Yue Zhang
Zhongjiang Kang
Huiqin Wang
author_sort Minghua Cao
collection DOAJ
description The ergodic channel capacity of wireless optical multiple-input multiple-output (MIMO) system with pulse position modulation (PPM) is investigated. The combined effects of atmospheric turbulence, atmospheric attenuation, pointing error and channel spatial correlation are taken into consideration. The expression of ergodic channel capacity is derived, and is further performed by Wilkinson approximation method for simplicity. The simulation results indicated that the strong spatial correlation has the greatest influence on the ergodic channel capacity, followed by pointing errors and atmospheric turbulence. Moreover, the ergodic channel capacity growth brought by space diversity only performs well under independent and weakly correlated channels. Properly increasing the size and spacing of the receiving apertures is an effective means of effectively increasing the ergodic channel capacity.
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spelling doaj.art-87e83025d7a14f05a6a50321cbc3892c2022-12-22T02:33:08ZengPolish Academy of SciencesInternational Journal of Electronics and Telecommunications2081-84912300-19332021-09-01vol. 67No 3431436https://doi.org/10.24425/ijet.2021.137830Ergodic Channel Capacity of PPM-Coded Optical MIMO Communications Under Combined EffectsMinghua Cao0Yue Zhang1Zhongjiang Kang2Huiqin Wang3School of Computer and Communication, Lanzhou University of Technology, Lanzhou, ChinaSchool of Computer and Communication, Lanzhou University of Technology, Lanzhou, ChinaSchool of Computer and Communication, Lanzhou University of Technology, Lanzhou, ChinaSchool of Computer and Communication, Lanzhou University of Technology, Lanzhou, ChinaThe ergodic channel capacity of wireless optical multiple-input multiple-output (MIMO) system with pulse position modulation (PPM) is investigated. The combined effects of atmospheric turbulence, atmospheric attenuation, pointing error and channel spatial correlation are taken into consideration. The expression of ergodic channel capacity is derived, and is further performed by Wilkinson approximation method for simplicity. The simulation results indicated that the strong spatial correlation has the greatest influence on the ergodic channel capacity, followed by pointing errors and atmospheric turbulence. Moreover, the ergodic channel capacity growth brought by space diversity only performs well under independent and weakly correlated channels. Properly increasing the size and spacing of the receiving apertures is an effective means of effectively increasing the ergodic channel capacity.https://journals.pan.pl/Content/121569/PDF/61_2654_Cao_skl1.pdfatmospheric channelergodic channel capacitypulse position modulationspatial correlationoptical wireless communications
spellingShingle Minghua Cao
Yue Zhang
Zhongjiang Kang
Huiqin Wang
Ergodic Channel Capacity of PPM-Coded Optical MIMO Communications Under Combined Effects
International Journal of Electronics and Telecommunications
atmospheric channel
ergodic channel capacity
pulse position modulation
spatial correlation
optical wireless communications
title Ergodic Channel Capacity of PPM-Coded Optical MIMO Communications Under Combined Effects
title_full Ergodic Channel Capacity of PPM-Coded Optical MIMO Communications Under Combined Effects
title_fullStr Ergodic Channel Capacity of PPM-Coded Optical MIMO Communications Under Combined Effects
title_full_unstemmed Ergodic Channel Capacity of PPM-Coded Optical MIMO Communications Under Combined Effects
title_short Ergodic Channel Capacity of PPM-Coded Optical MIMO Communications Under Combined Effects
title_sort ergodic channel capacity of ppm coded optical mimo communications under combined effects
topic atmospheric channel
ergodic channel capacity
pulse position modulation
spatial correlation
optical wireless communications
url https://journals.pan.pl/Content/121569/PDF/61_2654_Cao_skl1.pdf
work_keys_str_mv AT minghuacao ergodicchannelcapacityofppmcodedopticalmimocommunicationsundercombinedeffects
AT yuezhang ergodicchannelcapacityofppmcodedopticalmimocommunicationsundercombinedeffects
AT zhongjiangkang ergodicchannelcapacityofppmcodedopticalmimocommunicationsundercombinedeffects
AT huiqinwang ergodicchannelcapacityofppmcodedopticalmimocommunicationsundercombinedeffects