The algorithm for calculating integrals of hypergeometric type functions and its realization in REDUCE system

“…The average SER for a system using q-PSK modulation scheme is given by eq 10 from Efthymoglou et al 32, eq 10 as (26) where P(b, g) for g ∈ {g i,q−PSK , g i,q−QAM }, with g i,q−PSK = 2 (log 2 q)sin 2 ((2i − 1) ∕q) is expressed in terms of the CDF of equivalent end-to-end SNR as…”

Section: The Q-psk Modulation Schemementioning

confidence: 99%

Performance analysis of a variable‐gain amplify‐and‐forward relayed mixed RF‐FSO system

Khanna

Aggarwal

Ahuja

2017

Int J Communication

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SummaryIn this work, an amplify-and-forward variable-gain relayed mixed RF-FSO system is studied. The considered dual-hop system consists of a radio frequency (RF) link followed by a free space optical (FSO) channel. The RF link is affected by short-term multipath fading and long-term shadowing effects and is assumed to follow the generalized-K fading distribution that approximates accurately several important distributions often used to model communication channels.The FSO channel experiences fading caused by atmospheric turbulence that is modeled by the gamma-gamma distribution characterizing moderate and strong turbulence conditions. The FSO channel also suffers path loss and pointing error induced misalignment fading. The performance of the considered system is analyzed under the collective influence of distribution shaping parameters, pointing errors that result in misalignment fading, atmospheric turbulence, and path loss. The moment-generating function of the Signal power to noise power ratio measured end-to-end for this system is derived. The cumulative distribution function for the Signal power to noise power ratio present between the source and destination receiver is also evaluated. Further, we investigate the error and outage performance and the average channel capacity for this system. The analytical expressions in closed form for the outage probability, symbol and bit error rate considering different modulation schemes and channel capacity are also derived. The mathematical expressions obtained are also demonstrated by numerical plots. KEYWORDSchannel capacity, fading, free space optical communication, probability of outage, radio frequency communication, symbol error rate

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“…and K n (.) (see [25], Equations (11) and (14)) are rewritten in terms of Meijer's G-function G m,n p,q (.) (see [26], Equation (9.301)).…”

Section: Signal-to-noise Ratio and Bit Error Ratio Analysismentioning

confidence: 99%

Performance Analysis of Polarization Modulated DirectDetection Optical CDMA Systems over Turbulent FSO LinksModeled by the Gamma-Gamma Distribution

Bai

Sato

2015

Photonics

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This paper proposes a theoretical study to characterize the transmission of optical code division multiple access (CDMA) systems deploying polarization shift keying (PolSK) over a free space optical (FSO) link under the impact of atmospheric turbulence. In our analysis, a novel transceiver architecture for atmospheric OCDMA FSO systems based on polarization modulation with direct detection is proposed and discussed. A detailed analytical model for PolSK-OCDMA systems over a turbulent FSO link is provided. Further, we derive a closed-form bit error ratio (BER) and outage probability expressions, taking into account the multiple-access interference (MAI), optical noise and the atmospheric turbulence effect on the FSO link modeled by the Gamma-Gamma distribution. Finally, the results of this study show the most significant parameters that degrade the transmission performance of the PolSK-OCDMA signal over FSO links and indicate that the proposed approach offers improved bit error ratio (BER) performances compared to the on-off-keying (OOK) modulation scheme in the presence of turbulence.

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The algorithm for calculating integrals of hypergeometric type functions and its realization in REDUCE system

Cited by 940 publications

References 5 publications

Secrecy Capacity Analysis Over $\alpha - \mu $ Fading Channels

Secrecy Capacity Analysis Over $\alpha - \mu $ Fading Channels

Performance analysis of a variable‐gain amplify‐and‐forward relayed mixed RF‐FSO system

Performance Analysis of Polarization Modulated DirectDetection Optical CDMA Systems over Turbulent FSO LinksModeled by the Gamma-Gamma Distribution

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