Startseite Analytical Evaluation of Bit Error Rate Performance of a Free-Space Optical Communication System with Receive Diversity Impaired by Pointing Error
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Analytical Evaluation of Bit Error Rate Performance of a Free-Space Optical Communication System with Receive Diversity Impaired by Pointing Error

  • A. K. M. Nazrul Islam EMAIL logo und S. P. Majumder
Veröffentlicht/Copyright: 14. März 2015
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Journal of Optical Communications
Aus der Zeitschrift Journal of Optical Communications Band 36 Heft 2

Abstract

Analysis is carried out to evaluate the conditional bit error rate conditioned on a given value of pointing error for a Free Space Optical (FSO) link with multiple receivers using Equal Gain Combining (EGC). The probability density function (pdf) of output signal to noise ratio (SNR) is also derived in presence of pointing error with EGC. The average BER of a SISO and SIMO FSO links are analytically evaluated by averaging the conditional BER over the pdf of the output SNR. The BER performance results are evaluated for several values of pointing jitter parameters and number of IM/DD receivers. The results show that, the FSO system suffers significant power penalty due to pointing error and can be reduced by increasing in the number of receivers at a given value of pointing error. The improvement of receiver sensitivity over SISO is about 4 dB and 9 dB when the number of photodetector is 2 and 4 at a BER of 10–10. It is also noticed that, system with receive diversity can tolerate higher value of pointing error at a given BER and transmit power.

Keywords: bit error rate (BER); free-space optical (FSO); pointing error; on-off keying (OOK); Gamma-Gamma fading; Diversity technique etc
PACS® (2010).: 42.68.Bz, 42.68.Ge

Appendix-A

For MIMO, we derived

(18)SNR(hmn)=∑m=1M∑n=1N(2RdPt)2σn2xhmn2

We can rewrite equation (18) as:

(19)SNR(ζmn)=∑m=1M∑n=1Nζmn2

where,

ζmn=(2RdPt)σnxhmn=a. hmn and, a=2RdPtσnLet, y=ζmn and x=hmn
(20)⇒f(y)dy=fx(x)dx⇒f(y)=fx(x)dxdyx=f−1(y)=ya=fxya.1a=γ2A0γ2xγ2−10<x<A0
(21)P(y)=γ2A0γ2yaγ−1.1a
(22)P(ζmn)=γ2A0γ2ζmnaγ2−1.1awhere, γ=ωzeq2σs

Let,

(23)z=y2⇒2ydy=dzpzdz=pydy⇒dydz.p(y)=12y.p(y)where, y=f−1(z)

Finally, we can derive,

(24)Pζmn2=12ζmn2.γ2A0γ2ζmn2aγ2−1.1a

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Received: 2014-7-6
Accepted: 2015-2-10
Published Online: 2015-3-14
Published in Print: 2015-6-1

©2015 by De Gruyter

Artikel in diesem Heft

  1. Frontmatter
  2. Amplifiers
  3. Performance Analysis of WDM-PON System Based on Optimized Remotely Pumped Erbium-Doped Fiber Amplifier (EDFA) Parameter
  4. Devices
  5. Band Gap Properties of Two-Dimensional Photonic Crystal Structures with Rectangular Lattice
  6. Fibers
  7. Multi-parameter Simultaneously Sensing Based on an Optimized Concatenated FBG with LPG
  8. Networks
  9. Novel Scheme of Carrier Tri-reuse and Distribution Fiber Protection Based on Round Shift Method in Optical Access Network
  10. Performance Optimization of 45-Channel Superdense Wavelength-Division-Multiplexed (SDWDM) Optical Add–Drop Multiplexer (OADM) Ring Network
  11. A Survey on Next-Generation Mixed Line Rate (MLR) and Energy-Driven Wavelength-Division Multiplexed (WDM) Optical Networks
  12. Systems
  13. Performance Evaluation of N × 80 Gb/s DWDM Optical System over SSMF for CSRZ-DPSK and RZ-DPSK Signals with Optimized Alternate Polarization
  14. Analytical Evaluation of Bit Error Rate Performance of a Free-Space Optical Communication System with Receive Diversity Impaired by Pointing Error
  15. Performance Analysis of 16 Channel WDM System with 4 OADM
  16. Analysis of Different Harmonic and Intermodulation Distortions for CATV Systems
  17. Theory
  18. Comparison of Different Models for Ground-Level Atmospheric Attenuation Prediction with New Models According to Local Weather Data for FSO Applications
https://doi.org/10.1515/joc-2014-0053
Schlagwörter für diesen Artikel
bit error rate (BER); free-space optical (FSO); pointing error; on-off keying (OOK); Gamma-Gamma fading; Diversity technique etc

Artikel in diesem Heft

  1. Frontmatter
  2. Amplifiers
  3. Performance Analysis of WDM-PON System Based on Optimized Remotely Pumped Erbium-Doped Fiber Amplifier (EDFA) Parameter
  4. Devices
  5. Band Gap Properties of Two-Dimensional Photonic Crystal Structures with Rectangular Lattice
  6. Fibers
  7. Multi-parameter Simultaneously Sensing Based on an Optimized Concatenated FBG with LPG
  8. Networks
  9. Novel Scheme of Carrier Tri-reuse and Distribution Fiber Protection Based on Round Shift Method in Optical Access Network
  10. Performance Optimization of 45-Channel Superdense Wavelength-Division-Multiplexed (SDWDM) Optical Add–Drop Multiplexer (OADM) Ring Network
  11. A Survey on Next-Generation Mixed Line Rate (MLR) and Energy-Driven Wavelength-Division Multiplexed (WDM) Optical Networks
  12. Systems
  13. Performance Evaluation of N × 80 Gb/s DWDM Optical System over SSMF for CSRZ-DPSK and RZ-DPSK Signals with Optimized Alternate Polarization
  14. Analytical Evaluation of Bit Error Rate Performance of a Free-Space Optical Communication System with Receive Diversity Impaired by Pointing Error
  15. Performance Analysis of 16 Channel WDM System with 4 OADM
  16. Analysis of Different Harmonic and Intermodulation Distortions for CATV Systems
  17. Theory
  18. Comparison of Different Models for Ground-Level Atmospheric Attenuation Prediction with New Models According to Local Weather Data for FSO Applications
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