Results 11 to 20 of about 4,410,782 (330)
Learning Radio Environments by Differentiable Ray Tracing [PDF]
IEEE Transactions on Machine Learning in Communications and Networking, 2023 Ray tracing (RT) is instrumental in 6G research in order to generate spatially-consistent and environment-specific channel impulse responses (CIRs).
Jakob Hoydis +6 more
doaj +2 more sources
Sionna RT: Differentiable Ray Tracing for Radio Propagation Modeling [PDF]
2023 IEEE Globecom Workshops (GC Wkshps), 2023 Sionna™ is a GPU-accelerated open-source library for link-level simulations based on TensorFlow. Since release v0.14 it integrates a differentiable ray tracer (RT) for the simulation of radio wave propagation.
J. Hoydis +6 more
semanticscholar +1 more source
Channel Measurement and Ray-Tracing-Statistical Hybrid Modeling for Low-Terahertz Indoor Communications [PDF]
IEEE Transactions on Wireless Communications, 2021 TeraHertz (THz) communications are envisioned as a promising technology, owing to its unprecedented multi-GHz bandwidth. One fundamental challenge when moving to new spectrum is to understand the science of radio propagation and develop an accurate ...
Yi Chen +4 more
semanticscholar +1 more source
Opal: An open source ray-tracing propagation simulator for electromagnetic characterization. [PDF]
PLoS One, 2021 Accurate characterization and simulation of electromagnetic propagation can be obtained by ray-tracing methods, which are based on a high frequency approximation to the Maxwell equations and describe the propagating field as a set of propagating rays ...
Egea-Lopez E +3 more
europepmc +2 more sources
Learning Ego 3D Representation as Ray Tracing [PDF]
European Conference on Computer Vision, 2022 A self-driving perception model aims to extract 3D semantic representations from multiple cameras collectively into the bird's-eye-view (BEV) coordinate frame of the ego car in order to ground downstream planner. Existing perception methods often rely on
Jiachen Lu +4 more
semanticscholar +1 more source
Practical Face Reconstruction via Differentiable Ray Tracing [PDF]
Computer graphics forum (Print), 2021 We present a differentiable ray‐tracing based novel face reconstruction approach where scene attributes – 3D geometry, reflectance (diffuse, specular and roughness), pose, camera parameters, and scene illumination – are estimated from unconstrained ...
Abdallah Dib +6 more
semanticscholar +1 more source
Pseudo Ray-Tracing: Deep Leaning Assisted Outdoor mm-Wave Path Loss Prediction
IEEE Wireless Communications Letters, 2022 In this letter we present our results on how deep learning can be leveraged for outdoor path loss prediction in the 30GHz band. In particular, we exploit deep learning to boost the performance of outdoor path loss prediction in an end-to-end manner.
Kehai Qiu +4 more
semanticscholar +1 more source
Simulation of GPS localisation based on ray tracing [PDF]
Advances in Radio Science, 2021 In recent years, many simulation tools emerged to model the communication of connected vehicles. Thereby, the focus was put on channel modelling, applications or protocols while the localisation due to satellite navigation systems was treated as perfect.
B. Friebel +3 more
doaj +1 more source
Air-to-Ground Large-Scale Channel Characterization by Ray Tracing
IEEE Access, 2022 Through ray tracing simulation on three-dimensional (3D) urban environments, we characterize air-to-ground (A2G) channels for 5G and beyond wireless communications.
Mengan Song +4 more
doaj +1 more source
LLVM RISC-V RV32X Graphics Extension Support and Characteristics Analysis of Graphics Programs
IEEE Access, 2023 In recent years, virtual reality technology has become the dominant means of human-computer interaction, with computer graphics rendering technology being a crucial component in realizing virtual reality experiences.
Peng Wang, Zhi-Bin Yu
doaj +1 more source