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In order to reduce sampling costs and computational complexity in the signal reconstruction process of existing compressed spectrum sensing (CSS), we propose a novel two-step compressed spectrum sensing (TS-CSS) scheme exploiting correlation of occupation states between sensing periods. At the first step of TS-CSS, we detect busy sub-channels of last sensing period to find the sub-channels that are...
In wideband compressive spectrum sensing, when the number of occupied subbands in the monitored wideband increases, the existing compressive sensing approaches have to raise the sampling rate to maintain a desired sensing performance. What is worse, that will add computational complexity of the following signal reconstruction. To overcome this issue, this paper proposes a novel wideband spectrum sensing...
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