In these projects, I have explored a few cutting-edge Internet Protocols including HTTP/2, MQTT, HLS, DASH and WebRTC. The assignment were completed in groups of three members. I am grateful to S.V. and R.O. for having been members of my team in these small projects.
Assignments 1 and 2 need some dependecies to be installed:
pip install -r requirements.txt
Assignment 3 can be executed on any browser (just open index.html).
If you wish to test the playback delay, please follow the instruction in main.js to find out how.
Assignment 1 - HTTP/2 server with python hyper-h2 stack
We were asked to build a HTTP2 client and server, and an encrypted connection (using TLS) between them.
The methods the server offers are:
GET;PUT;POST;PUSH.
The incoming and outcoming data consists of images.
My work was mainly focused on the GET, PUT, POST client/server
implementations and Wireshark measurements of the performances beetwen POST and PUT.
Assignment 2 - Pub/Sub Services using paho-mqtt
We were ask to set up a communication between many subscribers and publisher sending json files using MQTT. The files would be encrypted (using TLS) and transmitted from publishers to subscribers and ingested in a sqlite database.
As for the performance analysis, we were required to measure the delay and the transmission rate with a large number of peers.
My focus was in developing:
- TLS connection;
- broker containerization;
- pub solution;
- multi subscriber;
- statistics based on wireshark measurements.
Assignment 3 - Video Streaming with WebRTC
The assignment requested to measure the behaviour of few (at least two) video streaming protocols in one-to-many and many-to-one scenarios. We experimented HLS, DASH and WebRTC.
Personally, I worked on WebRTC, implementing a p2p solution to stream video data collected from the system webcam, and computed the playback delay statistics.