Video Transmissions in Networks with Packet Loss

Packet loss is one of the main factors that can affect and/or impair the video’s quality, with a direct influence on the Quality of Experience (QoE) perceived by the end-user. For this reason, investigating the effects of packet loss on the quality of the video is crucial and could lead to a better understanding of the QoE perceived by the end-user. In this context, for purposes of teaching and learning on computer networks, this paper discusses a practical study on video transmissions in networks with packet loss. For this, based on a reference scenario, a computational environment is used for purposes of experimentation and discussion, with video transmissions under normal network conditions and with packet loss emulation of 5%, 10%, 15%, and 20%. The experiments and discussions are based in a computer network laboratory carried out with second-year students of an undergraduate computer course to help them understand the effects of packet loss on the quality of the video, as well as on the QoE perceived by the end-user. This work aims to complement other approaches to teaching and learning on computer networks.