Quantum Chemical Reaction Optimization Multi-Relay Selection Method for Cognitive Relay Networks
A technology of cognitive relay and chemical reaction, applied in the field of cognitive relay selection, can solve problems such as no consideration of ownerless user constraints, low system throughput, and low complexity
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[0080] The following examples of the present invention will be described in more detail.
[0081] 1, the establishment of the cognitive system relay selection model, cognitive relay network by a user of the source node cognitive s, d and L the destination node enlargement - forward half-duplex relay components. In the main user constraints, user awareness source node s, and the relay destination node d r i (I = 1,2, ..., L) with a primary user receiver is authorized to share the bandwidth of the band W, cognitive user source node to a certain destination node link is:
[0082]
[0083] P cognitive power transmission source node user s Neither exceed its maximum transmission power It is not possible to make the interference of the primary user receiver after the passage of the channel exceed the threshold I th . Further, each using the same frequency band at the relay forwarding information, neither its transmit power beyond their maximum transmit power, can not be such that the t...
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