N'Guessan has not featured for the Foxes since the end of October, but did go on loan at Scunthorpe in November.
The Frenchman will add to Nigel Adkins's attacking options, with Adam Lallana currently injured and Jason Puncheon out of favour.
Prior to N'Guessan's spell at the Walkers Stadium he was at Lincoln, Boston, Rangers and Auxerre.
Source: BBC Sport
Source: BBC Sport