One Course. Four Ways to Learn.

Read it. Listen to it. Practise it. Watch it.

Fundamentals of Data and Digital Communications

Follow a message from its original meaning to bits, physical signals, and packets travelling across a network. This lecture introduces communication systems, network performance, protocol models, TCP and UDP, delay, and fundamental signal properties. 

Fundamentals of Data and Digital Communications II

Follow an analog signal as it is sampled, quantized, encoded into PCM bits, transmitted through a real channel, and reconstructed at the receiver. This lecture introduces sampling and aliasing, quantization and PCM bit rate, bit and symbol rates, channel impairments and SNR, Nyquist and Shannon limits, and digital modulation using BASK, BPSK, QPSK, and QAM.

Fundamentals of Data and Digital Communications III

This lecture covers redundancy and code rate, single- and two-dimensional parity, Internet checksums, CRC generation and verification, and the choice between retransmission and error correction.

Foundations of Networking and Switching 

This lecture explores the elements of modern networks, including access, distribution, and core networks; Ethernet, Wi-Fi, cloud, and cellular systems; and how spectrum is reused. It explains how multiplexing shares communication links through frequency, time, wavelength, and codes, then examines circuit switching, switch architectures, and mobile call setup and handoff.