Hierarchical-control-channel-mechanism-based cognitive radio network establishment method
A technology of cognitive radio, establishment method, applied in the field of wireless communication signal processing
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[0065] figure 1 It is a flowchart of a method for establishing a cognitive radio network based on a two-layer control channel mechanism. The whole process is divided into five major steps.
[0066] First step, SU 0 Shake hands with neighboring cognitive users.
[0067] Step (1) detects the spectrum range used by authorized users.
[0068] Step (2) measures and records spectral holes.
[0069] Step (3) SU 0 Shake hands with neighboring cognitive users.
[0070] The second step, SU 0 Exchange spectral hole information with neighboring cognitive users.
[0071] The third step is to establish a high-level control channel.
[0072] Step (1) looks for common spectral holes.
[0073] Step (2) configures the upper layer control channel.
[0074] Step (3) Set the receive / transmit beam direction.
[0075] Step (4) realizes the control link of the upper layer control channel.
[0076] The fourth step is to use the high-level control channel to share the electromagnetic enviro...
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