A new method for cognitive radio multi-channel mac protocol

The present invention provides a cognitive radio channel MAC protocol. The basic idea of ​​the present invention are: the use of cognitive radio dynamic multi-channel spectrum characteristics of the environment, to improve network performance. Spectrum sensing phase, the protocol machine control method in a sequential spectrum sensing synchronization time slot, the available free spectrum was found. Meanwhile, the protocol defines a channel availability, availability of higher preference idle channels for data transmission. The present invention ensures that the cognitive radio network, the cognitive reduce user conflict, the reliability of the data channel, thereby increasing the throughput of the cognitive radio network.