  Time-dependent driving influences the quantum and thermodynamic fluctuations
of a system, changing the familiar physical picture of electronic noise which
is an important source of information the about microscopic mechanism of
quantum transport. Giving access to all cumulants of the current, the full
counting statistics (FCS) is the powerful theoretical method to study
fluctuations in nonequilibrium quantum systems. In this paper, we propose the
application of FCS to consider periodic driven junctions. The combination of
Floquet theory for time dynamics and nonequilibrium counting-field Green's
functions enables the practical formulation of FCS for the system. The
counting-field Green's functions are used to compute the moment generating
function, allowing for the calculation of the time-averaged cumulants of the
electronic current. The theory is illustrated using different transport
scenarios in model systems.
