Experimental analysis of the time dynamics of coherent communication through turbulence: Markovianity and channel prediction

Puryear, Andrew; Jin, Rui; Lee, Etty; Chan, Vincent W. S.

doi:10.1109/icsos.2011.5783685

Cited by 10 publications

(6 citation statements)

References 5 publications

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“…However, as in AMR operation, we observe frameby-frame transmissions that capture the memory properties of channel, it is important to include the time-varying behavior of atmospheric turbulence for more accurate performance evaluation. Experimental results supporting the timevarying behavior model can be found in [22] for the atmospheric turbulence.…”

Section: Markov Chain Modelssupporting

confidence: 74%

“…Note that (19) and (20) are the special cases of (25) and (26) when Ł = 0. Figure 3 compares the FER exact expression obtained by (21) with its approximations obtained by (22), and justifies the use of the FER approximations. Figure 3(a) also illustrates an example of how to obtain the switching thresholds for variable values of Ł.…”

Section: Amr/arq Cross-layer Designsupporting

confidence: 63%

“…into further analysis, we need to know LCR. Based on the experimental results supporting the time-varying behavior models, the LCR is inversely proportional to the coherence time, t 0 , yet increases as the turbulence becomes stronger, and can obtained as follows [22] N(…”

Section: Basic State Transition Analysismentioning

confidence: 85%

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Adaptive Multi-Rate Designs and Analysis for Hybrid FSO/RF Systems over Fading Channels

Vuong

Pham

2015

IEICE Trans. Commun.

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This paper proposes the concept of adaptive multi-rate (AMR), which jointly employs switching between two links and adaptive rate on each link, for hybrid free-space optical/radio-frequency (FSO/RF) systems. Moreover, we present the cross-layer design of AMR switching, which is based on both the physical and link layers with an automaticrepeat request (ARQ) scheme. We develop an analytical framework based on a Markov chain model for system performance analysis. System performance metrics, including frame-error rate, goodput and link switching probability, are analytically studied over fading channels. Numerical results quantitatively show how the proposal significantly outperforms conventional ones with physical layer-based design and/or fixed-rate switching operation. key words: hybrid FSO/RF, turbulence channel, automatic-repeat request (ARQ), adaptive multi-rate (AMR)

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Section: Markov Chain Modelssupporting

confidence: 74%

Section: Amr/arq Cross-layer Designsupporting

confidence: 63%

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Adaptive Multi-Rate Designs and Analysis for Hybrid FSO/RF Systems over Fading Channels

Vuong

Pham

2015

IEICE Trans. Commun.

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“…In [42], these distributions were obtained from experimental links data and compared to those generated by a twostate Markov (Gilbert-Erasure) model. This kind of model was also validated through experimentation for the atmospheric channel in [43,44]. Assuming the Markovian nature of the fading process as well, a similar two-state discrete time Markov model is used here to analytically compute the exceedance probability of fades' duration (i.e., the probability of facing a fade duration greater than the one considered) of the SMFcoupled flux after partial AO correction:…”

Section: Fade Duration Distributionmentioning

confidence: 99%

Statistical properties of single-mode fiber coupling of satellite-to-ground laser links partially corrected by adaptive optics

et al. 2017

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In the framework of satellite-to-ground laser downlinks, an analytical model describing the variations of the instantaneous coupled flux into a single-mode fiber after correction of the incoming wavefront by partial adaptive optics (AO) is presented. Expressions for the probability density function and the cumulative distribution function as well as for the average fading duration and fading duration distribution of the corrected coupled flux are given. These results are of prime interest for the computation of metrics related to coded transmissions over correlated channels, and they are confronted by end-to-end wave-optics simulations in the case of a geosynchronous satellite (GEO)-to-ground and a low earth orbit satellite (LEO)-to-ground scenario. Eventually, the impact of different AO performances on the aforementioned fading duration distribution is analytically investigated for both scenarios.

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“…with a = 1/2, b = 1 for Gauss-Markov process [14] or with a = 1, b = 2 [11]. The channel correlation time τ 0 is inversely proportional to the transversal wind speed [4], see Fig.…”

Section: A Power Scintillationmentioning

confidence: 99%

Simulation model of correlated FSO channels

Kolka

Biolková

Wilfert

et al. 2015

2015 Conference on Microwave Techniques (COMITE)

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The paper deals with a parameterized model for simulation of packet transmission on duplex atmospheric Free-Space Optical (FSO) links. Under certain conditions the optical propagation through atmospheric turbulence is reciprocal, i.e. the power fluctuation in forward and backward channels is highly correlated. The paper deals with a model for generating correlated and colored lognormal time series for time-domain simulation of packet transmission. The probability of occurrence of errors in each packet can be computed analytically based on noise performance of the receiver and one sample of randomly generated received power. The model is demonstrated in a parametric study of performance of FSO terminals whose link layer includes transmitter blocking during deep fades.

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Experimental analysis of the time dynamics of coherent communication through turbulence: Markovianity and channel prediction

Cited by 10 publications

References 5 publications

Adaptive Multi-Rate Designs and Analysis for Hybrid FSO/RF Systems over Fading Channels

Adaptive Multi-Rate Designs and Analysis for Hybrid FSO/RF Systems over Fading Channels

Statistical properties of single-mode fiber coupling of satellite-to-ground laser links partially corrected by adaptive optics

Simulation model of correlated FSO channels

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