Error performance of coded FSO links in turbulent atmosphere modeled by gamma-gamma distributions

Gappmair, Wilfried; Flohberger, Markus

doi:10.1109/twc.2009.080076

Cited by 100 publications

(39 citation statements)

References 10 publications

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“…This results also has been shown by W. Gapmair et al [14], gamma-gamma is appropriate in measurement of heavy turbulence. Jaedon Park et al [14], also have achieved results that gamma-gamma was suitable in measuring the moderate-strong turbulence. J. Perez [16] also have reported that in controled medium turbulence the results of strong turbulence at 10 -6 .…”

Section: Performances Of Free-space Optical Communication Systemsupporting

confidence: 85%

Performances of Free-Space Optical Communication System Over Strong Turbulence

Darusalam¹,

Priambodo²,

Sudibyo³

et al. 2014

MST

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We report an experimental of free-space optical communication (FSOC) system that use tube propagation simulator (TPS) as the turbulence medium. The FSOC system use wavelength of 1550 nm at the rate transmission of 1000 Mbps and amplified with EDFA at the output of +23 dBm. Index structure of 10 -15 -10 -13 as the representation of atmosphere index turbulences are used for simulation of intensity distribution model or scintillation. The simulation use gammagamma and K model as well. The beam wave propagation models used in simulation are plane wave, spherical wave and Gaussian wave. Spherical wave achieves highest performance via gamma-gamma in strong turbulence. While Gaussian wave achieves highest performance also via K model. We also found, characteristical FSOC system performance is calculated more accurately with gamma-gamma method for strong turbulence than K model. The performances from gamma-gamma for strong turbulence are at 22.55 dB, at 5.33×10 -4 , and at 9.41 ×10 -6 . AbstrakPerformansi Sistem Komunikasi Optik Media Atmosfir (Free-Space Optical Communication) dalam Kondisi Turbulensi Kuat. Kami melaporkan eksperimen sistem komunikasi optik media atmosfir (FSOC) menggunakan tube propagation simulator (TPS) sebagai kanal media turbulen. Sistem FSOC menggunakan panjang gelombang 1550 nm pada tingkat transmisi 1000 Mbps dan penguatan sinyal dengan EDFA pada luaran +23 dBm. Struktur indeks atmosfir pada kisaran 10 -15 -10 -13 digunakan sebagai parameter skala turbulensi untuk menghitung distribusi model intensitas atau sintilasi. Simulasi perhitungan menggunakan model statitistik gamma-gamma dan K. Model propagasi gelombang yang digunakan dalam simulasi adalah gelombang datar (plane wave), gelombang sirkular (spherical wave), gelombang Gaussian (Gaussian wave). Gelombang sirkular menghasilkan performansi tertinggi menggunakan model gammagamma pada turbulensi kuat. Sedangkan gelombang Gaussian menghasilkan performansi tertinggi menggunakan model K. Kami juga menemukan bahwa karakteristik performansi sistem FSOC dapat terukur lebih akurat menggunakan metode gamma-gamma untuk turbulensi kuat daripada model K. Hal tersebut mengacu pada hasil simulasi dan eksperimen. Hasil tersebut adalah dalam kondisi turbulensi kuat performansi berada pada rentang 22,55 dB, dalam rentang 5,33×10 -4 , dan pada rentang 9,41×10 -6 .

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Section: Performances Of Free-space Optical Communication Systemsupporting

confidence: 85%

Performances of Free-Space Optical Communication System Over Strong Turbulence

Darusalam¹,

Priambodo²,

Sudibyo³

et al. 2014

MST

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“…Therefore, taking the detector noise and channel turbulence into account, the bit error rate on the receiving terminal of OOK can be calculated by   (0) (e|0) (1) (e|1) e P p p p p [9,10]. Where, p(0) and p(1)are the probability of transmitting 1 and 0 respectively.…”

Section: Ber Under Atmospheric Turbulencementioning

confidence: 99%

Performance Analysis of Different Modulation Techniques for Free-Space Optical Communication System

Zhang

Xiao

et al. 2015

TELKOMNIKA

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“…Besides multiple photo detectors, error correction coding has been also proposed to improve link performance limited by strong turbulence fading [26,27]. [28,29].…”

Section: Performance Of Turbo Coding With Rx Diversitymentioning

confidence: 99%

“…From Table 1, for each interleaver, there is a pair of maximum free distance and minimum information bit multiplicity for which error floor performance of turbo code will be optimum for that particular length of interleaver. Consequently, d free and w free of (27) and (28) Now, average bit error rate for present system with receiver diversity and turbo coding can be found by integrating (27) and (28) over PDF of CINR proposed in (19). Consequently, the following two equations are found for unconditional bit error rate, and they will be evaluated by means of numerical integration: …”

Section: Performance Of Turbo Coding With Rx Diversitymentioning

confidence: 99%

Turbo-Coded MC-CDMA Communication Link over Strong Turbulence Fading Limited FSO Channel with Receiver Space Diversity

Hassan

Bhuiyan

Tanzil

et al. 2011

ISRN Communications and Networking

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This paper demonstrates an analytical approach on the bit error rate (BER) performance evaluation of a multi-carrier code division multiple access (MC-CDMA) communication link operating over terrestrial free space optical (FSO) channel considering effect of atmospheric turbulence The turbulence induced intensity fading is statistically modeled by Gamma-Gamma PDF (probability density function). Bit error rate performance improvement is proposed using photo detector spatial diversity with Equal Gain Combining (EGC) and Turbo Coding. Analysis is carried out with different bandwidth efficient phase shift keying (PSK) based sub-carrier intensity modulation (SIM) with direct detection. Numerical simulation results of proposed analytical model indicate that, sub-carrier intensity modulation scheme; number of receiver photo detectors, turbo coding parameter and link length should be optimally engineered for ensuring system reliability. It can be inferred from the simulation that, a reliable communication link (10 −10 BER) can be established over a link length of 4 Km in strong turbulence fading condition using an array of 4 PIN photo detectors, 8-ary PSK based sub-carrier intensity modulation scheme and appropriate turbo coding parameter with an average 10.2 dB CINR (Carrier to Interference and Noise Ratio) requirement per photo detector. Besides, more than 130 dB average CINR gain is also confirmed from BPSK modulated, un-coded SISO (single input-single output) system for maintaining targeted BER (10 −10 ) in presence of strong turbulence fading.

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Error performance of coded FSO links in turbulent atmosphere modeled by gamma-gamma distributions

Cited by 100 publications

References 10 publications

Performances of Free-Space Optical Communication System Over Strong Turbulence

Performances of Free-Space Optical Communication System Over Strong Turbulence

Performance Analysis of Different Modulation Techniques for Free-Space Optical Communication System

Turbo-Coded MC-CDMA Communication Link over Strong Turbulence Fading Limited FSO Channel with Receiver Space Diversity

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