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CS244 Project

Setup

To install the necessary packages for this project, run the following commands:

sudo apt update
sudo apt install git cmake gdb build-essential \
     clang clang-tidy clang-format gcc-doc \
     pkg-config glibc-doc tcpdump tshark libpcap-dev

To install the cryptography library we use, please see: https://libsodium.gitbook.io/doc/installation. To use an iPhone's personal hotspot with the Raspberry Pi 4 via USB tethering, libimobiledevice needs to be installed.

Infrastructure

  1. Set up a Raspberry Pi tethered to a cellular hotspot (we used 4G LTE).
  2. Run a Google Cloud server in your nearest region.

Build

Run the commands below to make and build the project:

cmake -S . -B build
cmake —-build build

Mininet

Run the command below to start the emulation in Mininet:

sudo python3 evaluation/emulation.py

The parameters of the Mininet topology can be set within the emulation.py file for further experimentation.

Sidekick

To reproduce the results of our replication, follow these steps:

  1. Upload the src/, util/, and scripts/ directories to your nearest Google Cloud server.
  2. Install all the necessary dependencies outlined in the setup section on the server.
  3. Run scripts/run_server.sh to listen for incoming packets over the WebRTC protocol and aggregate packets into the de-jitter buffer.
  4. Run scripts/run_proxy.sh to run the sidekick proxy from the Raspberry Pi to send quACKs to the client.
  5. Run scripts/run_client.sh to send outgoing packets to the server from your local laptop.

The results will be dumped into a CSV file for further examination.