A system with control of vehicle driving through a roundabout, comprising a position recognizer configured to recognize that a host vehicle is traveling around the roundabout; characterized by further comprising: a front sensor disposed at a front of the host vehicle and configured to sense a vehicle that possibly enters the roundabout while the host vehicle is traveling around the roundabout; a rear sensor disposed at a rear of the host vehicle and configured to recognize a vehicle (V1, V2) following the host vehicle while the host vehicle is traveling around the roundabout; a controller configured to calculate a possible entry time of the vehicle that possibly enters the roundabout, using information sensed by the rear sensor; and a communicator configured to provide the calculated possible entry time to the vehicle that possibly enters the roundabout, wherein the controller is further configured to determine, as the possible entry time, a latest time among a time at which the host vehicle is expected to pass through an entry point of the roundabout, a time at which a vehicle following immediately behind the host vehicle passes through the entry point, and a time at which a vehicle following the host vehicle on a side of the host vehicle passes through the entry point, wherein times at which the vehicles and are expected to pass through the entry point are calculated using traveling speeds of the vehicles (V, V1, V2) and distances between the vehicles (V, V1, V2) and the entry point a position recognizer configured to recognize that a host vehicle is traveling around the roundabout; characterized by further comprising: a front sensor disposed at a front of the host vehicle and configured to sense a vehicle that possibly enters the roundabout while the host vehicle is traveling around the roundabout; a rear sensor disposed at a rear of the host vehicle and configured to recognize a vehicle (V1, V2) following the host vehicle while the host vehicle is traveling around the roundabout; a controller configured to calculate a possible entry time of the vehicle that possibly enters the roundabout, using information sensed by the rear sensor; and a communicator configured to provide the calculated possible entry time to the vehicle that possibly enters the roundabout, wherein the controller is further configured to determine, as the possible entry time, a latest time among a time at which the host vehicle is expected to pass through an entry point of the roundabout, a time at which a vehicle following immediately behind the host vehicle passes through the entry point, and a time at which a vehicle following the host vehicle on a side of the host vehicle passes through the entry point, wherein times at which the vehicles and are expected to pass through the entry point are calculated using traveling speeds of the vehicles (V, V1, V2) and distances between the vehicles (V, V1, V2) and the entry point a front sensor disposed at a front of the host vehicle and configured to sense a vehicle that possibly enters the roundabout while the host vehicle is traveling around the roundabout; a rear sensor disposed at a rear of the host vehicle and configured to recognize a vehicle (V1, V2) following the host vehicle while the host vehicle is traveling around the roundabout; a controller configured to calculate a possible entry time of the vehicle that possibly enters the roundabout, using information sensed by the rear sensor; and a communicator configured to provide the calculated possible entry time to the vehicle that possibly enters the roundabout, wherein the controller is further configured to determine, as the possible entry time, a latest time among a time at which the host vehicle is expected to pass through an entry point of the roundabout, a time at which a vehicle following immediately behind the host vehicle passes through the entry point, and a time at which a vehicle following the host vehicle on a side of the host vehicle passes through the entry point, wherein times at which the vehicles and are expected to pass through the entry point are calculated using traveling speeds of the vehicles (V, V1, V2) and distances between the vehicles (V, V1, V2) and the entry point