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Item type:Publication, Access status: without files , Optical simulation framework for spatial optimization and channel characterization in intra-satellite LiFi systemsLight Fidelity (LiFi) for intra-satellite communication offers significant advantages, including flexible Assembly, Integration and Testing Phase (AIT) and reduced harness complexity. This paper presents a simulation framework for light propagation, primarily aimed at optimizing positioning, spatial structures, and system parameters for intra-satellite LiFi architectures. Initial simulations included generic scenarios such as obstacle simulation and transmitter–receiver alignment, followed by integration of a complete 3D CubeSat model. Results demonstrate the framework’s capability to support the optimization and visualization of optical communication structures, enabling virtual analysis that complements physical test setups in early development stages. The framework has been extended to incorporate diffuse reflection and simple wavelength-independent refraction, while supporting iterative reuse of simulation results and channel characteristics enabling iterative transmitter and receiver placement optimization.Publicationtype: Journal Article6 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Implementation and evaluation of CSBM for intra-satellite communication with cuboid-based signal-space generated symbolsLiFi for intra-satellite communication offers immense advantages like flexible AIT or reduced complexity (harness). However, high bandwidths and redundancies are equally required. Modulation methods that make use of the broad spectrum of light are (Color Space Based Modulations (CSBMs)). However, this requires precise knowledge of the transceivers and environments, as previous methods usually map to the CIE 1931 color scheme. But for intra-satellite communication, various assumptions can be made that favor the use of CSBM within the satellite. This paper presents an automated procedure that generates the symbols for CSBM. In order to ensure high reliability while using the entire color space for the symbols, a method based on cuboids is presented, which guarantees an overlap-free mapping between Transmit- and Signal-Space. In addition, the implementation of a Receiver based on an Field Programmable Gate Array (FPGA) is presented and real world measurements are conducted in detail to show the automatic symbol generation and the evaluation of symbol detection capabilities for communication.Publicationtype: Journal Article10 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Light simulation framework for the optimization of spatial structures for intra-satellite LiFi-communicationLight Fidelity (LiFi) for intra-satellite communication offers immense advantages like flexible AIT and reduced harness complexity. This paper presents a simulation framework for light propagation with the primary goal to optimize positioning, spatial structures and other system parameters for intra-satellite LiFi-communication architectures. Initial tests were conducted with generic scenarios, such as obstacle simulation and the alignment of transmitters and receivers. In a subsequent step, a complete 3D model of a CubeSat was integrated into the simulation. The results demonstrate that the framework is already suitable for optimizing and visualizing optical communication structures. This allows for virtual analysis, enhancing or complementing physical test setups in the early stages of development.Publicationtype: Conference Paper27