AD HOC NETWORK WIRELESS COMMUNICATION SYSTEM AND ITS WIRELESS COMMUNICATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a communication system which does not receive hidden host's matter when MAC protocol based on CSMA/CA is extended to multiple hop and in which a column transfer lag phenomenon is improved by DCF and operation performance is superior, and provide its method.

SOLUTION: This ad hoc network wireless communication system which transmits a data packet in a relay system for every hop includes a transmitting node which transmits an RTS message in order to transmit a data packet; and a receiving node which exists in the next hop of the transmitting node and sends out a CTS message according to the RTS message received from the transmitting node. In this case, at a time between the mutual receiving nodes which are sent out continuously one by one, the CTS messages are sent out according to the CTS messages which were sent out. The transmitting node transmits the data packet to the receiving node when the CTS messages sent out by the receiving node of the next hop are received at least a predetermined counter.

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