A permutation group-based channel pooling method for multi-antenna cognitive wireless networks
A technology of cognitive wireless network and permutation group, which is applied in the field of multi-antenna cognitive wireless network channel convergence based on permutation group, can solve the problem of long convergence time, and achieve the effect of shortening the time.
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[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0025] The cognitive wireless network environment considered in the present invention includes K (K≥2) users. Assuming the network is slotted, all slots are of the same fixed length. The licensed frequency band in the cognitive wireless network is divided into M (M≥1) non-orthogonal channels, that is, C={c 1 ,c 2 ,... c M}. It is assumed that all users in the network know the label of the channel. If the secondary user can communicate on a channel without any interference to the activities of the primary user, the channel is considered available for the secondary user. Whether the channel is available can be known through the relatively mature spectrum detection technology at present. Without loss of generality, the present invention considers the channel pooling problem between a pair of users i and j (i≠j and i,j=1,2,...,K). Assuming ...
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