Radio Frequency Communication and Modulation
Stub. Radio-frequency communication in the context of electromagnetism, antenna design, how RF signals propagate and attenuate in physical environments, spectrum division, and how modulation encodes data onto an RF carrier — in theory and in practice.
The physical layer most IoT devices actually use: wireless communication via radio frequency. Covers RF as an electromagnetic phenomenon, antennas as the transducer between a circuit and free space, how a signal propagates and attenuates as it moves through a real environment (walls, distance, interference), how the RF spectrum is divided among uses, and how modulation schemes encode digital data onto a carrier wave — the layer directly below the MAC-layer protocols that follow.
Outline (TODO — flesh out each)
- Radio frequency communications and electromagnetism
- Antenna design
- Signal propagation
- Attenuation
- Spectrum division
- Overview of modulation
- Modulation in practice