This paper introduces a methodology for replaying real WiFi traces in testbeds to study network performance and user experience. By mimicking user interactions and background traffic, the replay tool enables researchers to simulate realistic conditions and develop protocols that better address actual WiFi challenges.
Describes communication network types: PSTN, POTS, ISDN, and Internet. Explains circuit-switched vs packet-switched networks, their features, advantages, limitations, and modern relevance.
Unit covering network configuration basics, circuit switching versus packet switching methods, advantages and disadvantages of each, video conferencing block diagrams, hardware requirements, and protocols like SIP and RTP for telecommunications.