Patent ID: 8477751

Claim:
A communication system in which wireless communication is performed between mobile stations, the communication system comprising: each of the mobile stations including, a mobile station position detecting unit configured to detect a present position of the mobile station in which the mobile station position detecting unit is included, a processor configured to set a transmission resource according to a present position of the mobile station in which the processor is included, the transmission resource being set based on transmission resource association information including different transmission resources assigned to plural assignment areas provided at different positions along a road through which the mobile station in which the transmission resource setting unit is included passes, a transmitter configured to transmit data with the use of the transmission resource that has been set, and a receiver configured to receive data transmitted from another mobile station, wherein a transmission/reception distance set for performing transmission and reception between the mobile stations is specified in advance, the plural assignment areas to which the different transmission resources are assigned are provided in a first area, a second area is provided outside the first area, the second area including plural assignment areas to which the same transmission resources as those of the first area are assigned, and a distance between an assignment area in the first area and an assignment area in the second area using the same transmission resource is greater than two times that of the transmission/reception distance.