Year: 2026
Type: article
Abstract: This paper discussed a frequency-dependent distributed beamforming technique to improve the reliability in implant multiple-input multiple-output (MIMO)-ultra wideband (UWB) communications. To realize distributed beamforming for implant MIMO-UWB systems, we propose an optimization method to theoretically determine the weight coefficients optimized for the implant UWB communication. To evaluate the performance improvement, the propagation characteristics of the implant channel in the low band UWB (3.4-4.8 GHz) were analyzed by the finite difference time domain (FDTD) method with a numerical human model. Subsequently, this study conducted computer simulations based on the derived propagation channel model. The evaluation results demonstrate that the proposed beamforming effectively improved the [Formula: see text] performance by 5 dB in a capsule endoscopy scenario, compared to the conventional method, which can improve implantable medical devices in the future.
Source: Scientific Reports
Institution: Osaka Metropolitan University
Language: English
Topic: Wireless Body Area Networks
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
OpenAlex ID: W7125099705