Performance Analysis of Relay-Assisted Noncoplanar Ultraviolet Scattering Communication Over Turbulent Channels

Abstract

Abstract: Abstract: Due to scattering characteristics, ultraviolet communication can adapt to complex working environment. However, atmospheric absorption, scattering and turbulence also result in rapid attenuation of signal intensity, which greatly limits the transmission distance. Cooperative relay is an effective method to overcome this shortcoming and expand the communication range. Considering the non-coplanar relay assisted ultraviolet scattering system in atmospheric turbulence, the closed-form expressions of outage probability under decoding-forwarding (DF) and amplifying-forwarding (AF) protocols are derived. Monte Carlo simulation verifies the correctness of the theoretical analysis results. The simulation results show that the outage performance of DF is better than that of AF. The higher the optical transmission power, the smaller the receiving elevation and the smaller the offset angle, the better the outage performance of the system. The change rule of outage probability with transmission elevation is different when the offset angle is different.

Key words: atmospheric turbulence, optical scattering communication, outage probability, decode-and-forward, amplify and forward

CLC Number:

TN929.12

MOU Weifeng, PU Tao, ZHENG Jilin. Performance Analysis of Relay-Assisted Noncoplanar Ultraviolet Scattering Communication Over Turbulent Channels[J]. Chinese Journal of Quantum Electronics, 2020, 37(1): 83-87.

References

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