WiFi Traffic Trace Replay

WiFi Traffic Trace Replay

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.

Wireless Bit Rate Adaptation

Wireless Bit Rate Adaptation

Research paper on SoftRate, a wireless bit rate adaptation protocol using confidence information from physical layer via SoftPHY interface to estimate channel bit error rate, achieving higher throughput than frame-level and SNR-based protocols in varying wireless conditions.

Communication Networks (PSTN, ISDN)

Communication Networks (PSTN, ISDN)

Describes communication network types: PSTN, POTS, ISDN, and Internet. Explains circuit-switched vs packet-switched networks, their features, advantages, limitations, and modern relevance.

Circuit and Packet Switching

Circuit and Packet Switching

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.