Signal to Noise Ratio

Enhancing Secrecy Capacity in FSO Links via MISO Systems through Turbulence-Induced Fading Channels with Misalignment Errors
It has recently been proved that the free-space optical (FSO) communication links are susceptible to interceptions. Due to this reason, …
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Impact of angular pointing error on BER performance of underwater optical wireless links
Even in clear ocean water, underwater optical wireless communication (UOWC) is impaired not only by absorption and scattering, but also …
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Asymptotic Average Secrecy Rate for MISO Free-Space Optical Wiretap Channels
Lately, it has been demonstrated that free-space optical (FSO) communication systems are not interception-free. For that reason, the …
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Secure communication for FSO links in the presence of eavesdropper with generic location and orientation
When the beam waist at the receiver is significantly larger than the receiver size, free-space optical (FSO) links may be vulnerable to …
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Amplify-and-forward strategy using MRC reception over FSO channels with pointing errors
Free-space optical (FSO) systems offer ultrahigh data rates for a number of terrestrial applications. This paper presents what we …
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Capacity of FSO Systems over Lognormal Fading Channels with Generalized Pointing Errors
A novel approximate closed-form expression for the ergodic capacity of FSO communication systems over log-normal atmospheric turbulence …
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Ergodic capacity analysis of decode-and-forward relay-assisted FSO systems over alpha-mu fading channels considering pointing errors
The ergodic capacity of decode-and-forward (DF) relay-assisted free-space optical (FSO) communication systems when line of sight is …
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Impact of nonzero boresight pointing error on ergodic capacity of MIMO FSO communication systems
A thorough investigation of the impact of nonzero boresight pointing errors on the ergodic capacity of multiple-input/multiple-output …
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Average channel capacity analysis of BDF relaying over alpha-mu fading channels
Average channel capacity for the bit-detect-and-forward (BDF) cooperative protocol over α-μ fading channels is analyzed. Novel …
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Evaluating pointing errors on ergodic capacity of DF relay-assisted FSO communication systems
Ergodic capacity of decode-and-forward (DF) relay-assisted free-space optical (FSO) communication systems when line of sight is …
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