Wireless Channel: Modulation and Noise

This lecture covers the basics of wireless communication, focusing on modulation techniques, noise in the wireless channel, and the impact of multipath propagation. It explains how bits are mapped to symbols, the effects of noise on signal quality, and the challenges posed by multipath channels. The instructor discusses channel estimation, correction, and the concept of channel fading. Additionally, the lecture explores the differences between narrowband and wideband channels, the phenomenon of Doppler shift, and the implications of time-varying channels on communication systems.