This book describes a wireless channel for system design with diverse mobile communication services, including propagation. It explains mobile propagation channels and analyses multi-path channel properties, the findings of which are validated by example experiments. The book explores such topics as: received signal level with wideband channels, street propagation using the Fresnel zone model, street cell design, space and polarization diversity antenna branch properties and their expressions, analysis models with space-frequency-path axes, SU-MIMO and MU-MIMO channel models, and MU-MIMO in 5G systems. The appendix explains these analysis processes in detail.
This book covers the measurement of optoelectronic components, focusing on the implementation of static electrical and optical characterization. It links these measurements to solid state physics and presents different LED technologies through detailed experimental analyses.