BER analysis of all-optical AF dual-hop FSO systems over Gamma-Gamma channels

Trinh, Phuc V.; Pham, Anh T.; Pham, Hien T. T.; Dang, Ngoc T.

doi:10.1109/icp.2013.6687105

Cited by 8 publications

(8 citation statements)

References 11 publications

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“…In particular, Monte Carlo simulation results for the bit error rate (BER) performance for the FSO relay system using fixed-gain optical amplifiers or optical regenerators under the weak turbulence regime was reported in [20]. In [23], an all-optical AF dualhop FSO system employing a 4-pulse position modulation operating at the wavelength of 1550 nm over Gamma-Gamma (ГГ) turbulence channel was reported showing that the required transmitted power is reduced proportionately to the amplifier gain. For example, with a gain of 10 dB, the transmit power per bit of 10 dBm is conserved at a target BER of 10 -6 over a link span of 3 km.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of All-Optical Relay-Assisted 10 Gb/s FSO Link Over the Atmospheric Turbulence Channel

Nor

Ghassemlooy

Bohata

et al. 2017

J. Lightwave Technol.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation of All-Optical Relay-Assisted 10 Gb/s FSO Link Over the Atmospheric Turbulence Channel

Nor

Ghassemlooy

Bohata

et al. 2017

J. Lightwave Technol.

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“…Without the loss of generality, we also assume that symbol s 0 is transmitted with received current of I s . By using union bound technique, the upper bound to the instantaneous symbol error probability can be expressed as (16) where s represents the transmitted symbol. I n is the current corresponding to non-signal slot and erfc (. )…”

Section: B Serial Hybrid Relaying Df-af Schemementioning

confidence: 99%

“…In many previous studies, such as [15] and [4] , noise is assumed as additive white Gaussian noise (AWGN) for the sake of simplicity. In fact,the performance of OAF relaying FSO systems over strong atmospheric turbulence channels has been recently studied [20] , [16] , [19] , [18] and [17] . Nevertheless, due to the analysis complexity, these studies are limited, case of PPM modulation, to the special case of dual-hop or parallel OAF relaying systems.…”

Section: B Serial Hybrid Relaying Df-af Schemementioning

confidence: 99%

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Performance analysis of PPM modulation in multihop FSO system over gamma gamma channel

Saidi

Tourki

Hamdi

2016

2016 International Symposium on Signal, Image, Video and Communications (ISIVC)

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Atmospheric turbulence induced fading is one of the main impairments affecting the operation of free-space optical (FSO) communication systems. In this work, the average symbol error rate (SER) of M-ary pulse position modulation (PPM) is analyzed under Gamma-Gamma fading channel. Using the characteristics of Meijer G function, Closed-form expression for average SER is derived. In this paper, we analyze the performance of detect and forward relay or/and amplify and forward three-hop FSO systems over strong atmospheric turbulence channels. In our analysis, turbulence channels are modeled by Gamma-Gamma distribution and the AF transmission is based on optical amplify-and forward (OAF) technique. The DF relay refers to detect and forward protocol. We look for symbol-error probability (SEP) of dual-hop PPM modulated FSO systems taking into account the effects of various noises as well as path loss and geometric spreading of optical beam. The numerical results show that strong turbulence has a severe effect on the performance of FSO systems. we employ PPM modulation to improve the system's performance.

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“…The performance of OAF relaying FSO systems over strong atmospheric turbulence channels has been recently studied [13]- [15]. Nevertheless, due to the analysis complexity, these studies are limited to the special case of dual-hop or parallel OAF relaying systems.…”

mentioning

confidence: 99%

All-Optical Relaying FSO Systems Using EDFA Combined With Optical Hard-Limiter Over Atmospheric Turbulence Channels

Trinh

Dang

Pham

2015

J. Lightwave Technol.

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In this paper, a novel relaying technique is proposed to improve the bit-error rate (BER) performance and distance coverage of high-speed all-optical free-space optical (FSO) communication systems. Particularly, an optical amplifyand-forward (OAF) relaying technique using erbium-doped fiber amplifier (EDFA) combined with optical hard-limiter (OHL) is introduced. The use of OHL enables EDFA-based OAF relaying FSO systems to prevent the accumulation of amplified background noise, which significantly degrades the system performance when deploying multiple relays. For performance evaluation, we theoretically analyze the proposed system over atmospheric turbulence channels modeled by Gamma-Gamma distribution. A closed-form expression for the end-to-end BER bounds is therefore analytically formulated, taking into account other impacts of atmospheric channels including atmospheric attenuation and geometric spreading of the optical beam, as well as noises caused by background light and receiver. The numerical results, which are validated by Monte-Carlo (M-C) simulations, confirm the superiority of the proposed system in comparison with conventional ones.Index Terms-Optical amplify-and-forward relaying, optical hard-limiter, EDFA, background noise, atmospheric turbulence, channel loss, FSO communication systems.

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BER analysis of all-optical AF dual-hop FSO systems over Gamma-Gamma channels

Cited by 8 publications

References 11 publications

Experimental Investigation of All-Optical Relay-Assisted 10 Gb/s FSO Link Over the Atmospheric Turbulence Channel

Experimental Investigation of All-Optical Relay-Assisted 10 Gb/s FSO Link Over the Atmospheric Turbulence Channel

Performance analysis of PPM modulation in multihop FSO system over gamma gamma channel

All-Optical Relaying FSO Systems Using EDFA Combined With Optical Hard-Limiter Over Atmospheric Turbulence Channels

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