SIM/SM-Aided Free-Space Optical Communication With Receiver Diversity

Hwang, Seung-Hoon; Cheng, Yan

doi:10.1109/jlt.2014.2327078

Cited by 20 publications

(6 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Only recently, there have been papers published in the open technical literature dealing with performance analysis studies of FSO systems employing spatial modulation and operating in the presence of atmospheric turbulence, e.g. see [20] and [21]. Specifically, in [20], the combination of subcarrier intensity modulation and spatial modulation with receiver diversity was proposed to enhance the performance of intensity modulated direct detection (IM/DD) FSO systems.…”

Section: Pr{•} Denotes the Probability Operatormentioning

confidence: 99%

Free-Space Optical Communication With Spatial Modulation and Coherent Detection Over H-K Atmospheric Turbulence Channels

Peppas

Mathiopoulos

2015

J. Lightwave Technol.

View full text Add to dashboard Cite

Abstract-The use of optical spatial modulation (OSM), which has been recently emerged as a power and bandwidth efficient pulsed modulation technique for indoor optical wireless communication, is proposed as a simple, low-complexity means of achieving spatial diversity in coherent free space optical (FSO) communication systems. In doing so, this paper makes several novel contributions as follows. It presents a generic analytical framework for obtaining the Average Bit Error Probability (ABEP) of uncoded OSM with coherent detection in the presence of turbulence-induced fading. Although the framework is general enough to accommodate any type of models based on turbulence scattering, the focus in this paper is the H-K distribution. Although this distribution represents a very general scattering model valid over a wide range of atmospheric conditions, it is has not been considered in the past in conjunction with FSO systems possibly because of its mathematical complexity. The proposed analytical framework yields exact performance evaluation results for MIMO systems with two transmit and an arbitrary number of receive apertures. In addition, tight upper bounds are derived for the error probability for OSM systems with an arbitrary number of transmit apertures as well as for convolutionally encoded signals. The performance of OSM is compared to that of well established coherent FSO schemes, employing spatial diversity at the transmitter or the receiver only. Specifically, it is shown that OSM can offer comparable performance with conventional coherent FSO schemes while outperforming the latter in terms of spectral efficiency and hardware complexity. Various numerical performance evaluation results are also presented and compared with equivalent results obtained by Monte Carlo simulations which verify the accuracy of the derived analytical expressions.Index Terms-average bit error probability, atmospheric turbulence, coherent detection, free space optical communication systems, H-K distribution, multiple-input multiple-output (MIMO) systems, optical spatial modulation.

show abstract

Section: Pr{•} Denotes the Probability Operatormentioning

confidence: 99%

Free-Space Optical Communication With Spatial Modulation and Coherent Detection Over H-K Atmospheric Turbulence Channels

Peppas

Mathiopoulos

2015

J. Lightwave Technol.

View full text Add to dashboard Cite

show abstract

“…For the mathematical analysis, the BER expression of BPSK modulated SIM/SM scheme for spectral efficiency of 2 bits/s/ Hz over AWGN channel can be represented as in [17] …”

Section: Performance Analysismentioning

confidence: 99%

“…Furthermore, we can derive the BER expression of the conventional SIM with selection diversity over the atmospheric turbulence channel using (17). The BER of BPSK modulated SIM for spectral efficiency of 2 bits/s/Hz over AWGN channel is given in [17] P SIM (g b (I)) = Q…”

Section: Performance Analysismentioning

confidence: 99%

“…The BER of BPSK modulated SIM for spectral efficiency of 2 bits/s/Hz over AWGN channel is given in [17] P SIM (g b (I)) = Q…”

Section: Performance Analysismentioning

confidence: 99%

“…where y = ( ln (I/I 0 ) + s 2 l /2)/ 2 √ s l . When the number of receiver is one, (17) returns the log-normal distribution. Using both (12) and (17), the error performance of the proposed selection diversity-aided SIM/SM scheme for spectral efficiency of 2 bits/s/Hz is represented as P e-SIM/SM(SD) = 1 0 P SIM−SM (g b (I))P(I max ) dI…”

Section: Performance Analysismentioning

confidence: 99%

See 2 more Smart Citations

Selection diversity‐aided subcarrier intensity modulation/spatial modulation for free‐space optical communication

Lee

Hwang

2015

IET Optoelectronics

View full text Add to dashboard Cite

In this study, the authors investigate the performance of selection diversity-aided subcarrier intensity modulation (SIM)/spatial modulation (SM) for free-space optical communications. Selection diversity is a receiver diversity technique which can enhance reception robustness in atmospheric turbulence-induced fading. Moreover, it is most attractive in terms of the complexity when compared with the other diversity schemes. Through computer simulations, the performance of the proposed selection diversity-aided SIM/SM is compared in terms of bit error rate with that of the conventional SIM in an additive white Gaussian noise and in an outdoor environment with log-normal atmospheric channel. Furthermore, the error performance are mathematically analysed in the atmospheric turbulence channel at the spectral efficiency of 2 bits/s/Hz. Numerical results show that the performance of the proposed SIM/SM with two receivers is better than that of a conventional SIM with four receivers at the spectral efficiency of 4 bits/s/Hz. It means that the SIM/SM can release the complexity with less diversity photodetectors over the atmospheric turbulence channel. Additionally, it is shown that the performance of the proposed SIM/SM outperforms that of a conventional SIM regardless of the irradiance variance value. Therefore, the proposed selection diversity-aided SIM/SM can be a good solution to achieve reliable communication with low complexity under high spectral efficiency, even under the impaired conditions of a turbulence fading channel.

show abstract

Performance enhancement of hybrid diversity for M-ary modified pulse-position modulation and spatial modulation of MIMO-FSO systems under the atmospheric turbulence effects with geometric spreading

Elsayed

Yousif

2020

Opt Quant Electron

View full text Add to dashboard Cite

SIM/SM-Aided Free-Space Optical Communication With Receiver Diversity

Cited by 20 publications

References 10 publications

Free-Space Optical Communication With Spatial Modulation and Coherent Detection Over H-K Atmospheric Turbulence Channels

Free-Space Optical Communication With Spatial Modulation and Coherent Detection Over H-K Atmospheric Turbulence Channels

Selection diversity‐aided subcarrier intensity modulation/spatial modulation for free‐space optical communication

Performance enhancement of hybrid diversity for M-ary modified pulse-position modulation and spatial modulation of MIMO-FSO systems under the atmospheric turbulence effects with geometric spreading

Contact Info

Product

Resources

About