scholarly journals Simulation Platform for Performance Analysis of Cooperative Eigenvalue Spectrum Sensing with a Realistic Receiver Model Under Impulsive Noise

10.5772/55432 ◽  
2013 ◽  
Author(s):  
Rausley Adriano Amaral de Souza ◽  
Dayan Adionel ◽  
Andre Antonio dos Anjos
Keyword(s):  
Performance Analysis ◽  
Spectrum Sensing ◽  
Impulsive Noise ◽  
Simulation Platform ◽  
Eigenvalue Spectrum ◽  
Receiver Model

scholarly journals Performance Analysis and Design Considerations of the Shallow Underwater Optical Wireless Communication System with Solar Noises Utilizing a Photon Tracing-Based Simulation Platform

Electronics ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 632
Author(s):  
Xiaozheng Wang ◽  
Minglun Zhang ◽  
Hongyu Zhou ◽  
Xiaomin Ren
Keyword(s):  
Performance Analysis ◽  
Wireless Communication ◽  
Ambient Noise ◽  
Large Scale ◽  
Delay Spread ◽  
Simulation Platform ◽  
Optical Wireless Communication ◽  
Optical Wireless ◽  
Analysis And Design ◽  
The Impact

The performance of the underwater optical wireless communication (UOWC) system is highly affected by seawater´s inherent optical properties and the solar radiation from sunlight, especially for a shallow environment. The multipath effect and degradations in signal-to-noise ratio (SNR) due to absorption, scattering, and ambient noises can significantly limit the viable communication range, which poses key challenges to its large-scale commercial applications. To this end, this paper proposes a unified model for underwater channel characterization and system performance analysis in the presence of solar noises utilizing a photon tracing algorithm. Besides, we developed a generic simulation platform with configurable parameters and self-defined scenarios via MATLAB. Based on this platform, a comprehensive investigation of underwater channel impairments was conducted including temporal and spatial dispersion, illumination distribution pattern, and statistical attenuation with various oceanic types. The impact of ambient noise at different operation depths on the bit error rate (BER) performance of the shallow UOWC system was evaluated under typical specifications. Simulation results revealed that the multipath dispersion is tied closely to the multiple scattering phenomenon. The delay spread and ambient noise effect can be mitigated by considering a narrow field of view (FOV) and it also enables the system to exhibit optimal performance on combining with a wide aperture.

Multiple-Antenna-Based Blind Spectrum Sensing in the Presence of Impulsive Noise

2014 ◽  
Vol 63 (5) ◽  
pp. 2248-2257 ◽  
Author(s):  
Kais Hassan ◽  
Roland Gautier ◽  
Iyad Dayoub ◽  
Marion Berbineau ◽  
Emanuel Radoi
Keyword(s):  
Spectrum Sensing ◽  
Impulsive Noise ◽  
Multiple Antenna
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