Patent ID: 8400959

Claim:
A wireless communication apparatus that carries out wideband communication with another wireless communication apparatus in an ad-hoc network, the wireless communication apparatus comprising: a narrowband communication section that transmits and receives a narrowband synchronized signal for realizing superframe synchronization; and a wideband communication section that transmits and receives a wideband data signal used in the wideband communication, wherein the narrowband communication section transmits the narrowband synchronized signal in an output such that a signal reachable range of the narrowband synchronized signal is greater than a signal reachable range of the wideband data signal; a synchronizing section that acquires synchronization with another superframe group when the narrowband synchronized signal is received from the another wireless communication apparatus; and a probe signal transmitting section that transmits a probe signal for detecting the another wireless communication apparatus when the synchronization with the another superframe group is acquired, wherein the narrowband communication section transmits the narrowband synchronized signal such that the signal reachable radius R of the narrowband synchronized signal satisfies R=r+VNT, where T is a superframe period, N is a resynchronization superframe lap count, v is a moving speed of the wireless communication apparatus and r is the signal reachable radius of the wideband data signal.