Abstract Explosive data rate requirements in the satellite communication for surveillance, military services, and broadcasting have put peer pressure on optical wireless (OWC) systems. Secure transmission against eavesdropper performance enhancement at authentic user is major concern these days. In this work, security analysis of spectral amplitude codes (SAC) mode division multiplexed (MDM) OW...

To share the construction and maintenance cost, an asymmetric oscillating water column (OWC) device integrated with a pile-fixed box-typed offshore breakwater is considered experimentally numerically. A fully nonlinear numerical wave tank established validated open source solver OpenFOAM. The effects of width draft rear box, incident height on energy conversion efficiency, reflection transmissi...

The hydrodynamic performance of a floating cylindrical oscillating water column (OWC) wave energy converter is investigated experimentally and numerically. physical experiment carried out in flume at Dalian University Technology. OWC device constrained by springs only moves vertically. A second-order time-domain Higher-Order Boundary Element Method, based on the perturbation expansion technique...

In a Spacecraft (SC), huge amount of cabled electrical connections is needed by many different units to exchange digital data. This increases the overall mass, space occupancy, and routing design time. Here, we propose demonstrate an Optical Wireless Communication (OWC) system that can perfectly replace MIL-STD-1553B cables inside SC, providing wireless communication among satellite units, with...

A soil’s physical properties, mineral types, and pore structure significantly influence the shape properties of soil-water characteristic curve (SWCC). This study investigated effects types on SWCC pore-size distribution (PSD). Eight different soils from an alluvial deposit in Istanbul Adapazar?/Türkiye were used study. The test samples prepared by compaction at optimum water content (OWC) wet ...

This paper explores the effects of sunlight on using a low-cost off-the-shelf silicon solar panel as an optical wireless communication (OWC) receiver. A receiver circuit structure has been proposed to maximize simultaneous energy harvesting and data performance. An equivalent model for is discussed. By model, varying conditions performance OWC are estimated. Furthermore, experimental setup deve...

This work presents a two-dimensional numerical analysis of wave channel and oscillating water column (OWC) device. The main goal is to validate methodology which uses transient velocity data as means impose boundary condition for the generation waves. To achieve this, was simulated using regular waves with same parameters those used in laboratory experiment. First, these were imposed prescribed...

We propose in this paper a new nonlinear mathematical model of an oscillating water column (OWC). The one-dimensional shallow equations the presence device are reformulated as transmission problem related to interaction between waves and fixed partially immersed structure. By imposing conservation total fluid-OWC energy non-damped scenario, we able derive condition that involves time-dependent ...