Install all the required dependencies using this command.

$ sudo apt-get install protobuf-compiler libprotobuf-dev autotools-dev dh-autoreconf iptables pkg-config dnsmasq-base debhelper libxcb-present-dev libcairo2-dev libpango1.0-dev libtar-dev 

Install CellReplay using this command.

$ cd cellreplay
$ ./autogen.sh
$ ./configure
$ make
$ sudo make install

The network traces are located in the "traces" folder, and it has to be decompressed before it can be used.

CellReplay is a record-and-replay emulator for cellular network. CellReplay can replay a set of pre-recorded network traces through an emulated TUN interface implemented via a shell. Any unmodified application can then be run inside the CellReplay shell and result in a similar performance and behavior as it was running on the live cellular network. We provided 5G T-Mobile and Verizon traces recorded under multiple scenarios that includes stationary, walking, and driving.

To use the cellreplay emulator, you need to call mm-cellular.

$ mm-cellular NUM_ARGS UP-PACKET-TRAIN-TRACE DOWN-PACKET-TRAIN-TRACE UP-PDO DOWN-PDO PACKET-LOG-PATH-PREFIX [OPTION]... [COMMAND]

NUM_ARGS = the total number of arguments (including the mm-cellular command itself)
UP-PACKET-TRAIN-TRACE = the uplink base delay and light PDO trace
DOWN-PACKET-TRAIN-TRACE = the downlink base delay and light PDO trace
UP-PDO = the uplink heavy PDO trace
DOWN-PDO = the downlink heavy PDO trace
PACKET-LOG-PATH-PREFIX = Folder path for the log purposes
[OPTION] = optional commands

This is an example of the command with two optional arguments (for latency compensation based on the packet size) and packet log directory (which should exist beforehand) of $HOME/packet-logs. Note that the traces have to be decompressed first.

mm-cellular 9 traces/tmobile/driving/up-delay-light-pdo traces/tmobile/driving/down-delay-light-pdo \
traces/tmobile/driving/up-pdo traces/tmobile/driving/down-pdo \
$HOME/packet-logs \
--psize-latency-offset-up=traces/tmobile/driving/latency-offset-up \
--psize-latency-offset-down=traces/tmobile/driving/latency-offset-down

An unmodified application can run inside the mm-cellular shell and have all their incoming (downlink) and outgoing (uplink) packets delayed as it is going to the real cellular network.