Optimal multi-channel cooperative sensing in cognitive radio networks
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512 citations
Cites background from "Optimal multi-channel cooperative s..."
...Data fusion: Each cognitive user simply amplifies the received signal from the primary user and forwards to the fusion center [2], [4], [16]....
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259 citations
Cites methods from "Optimal multi-channel cooperative s..."
...In a multi-channel system based on linear CSS, the optimal value of the decision threshold, gc, and sensing time, τ, are obtained by maximizing the throughput of the SU system for a given detection probability [49]....
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References
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"Optimal multi-channel cooperative s..." refers background in this paper
...As an emerging technique to realize this idea, cognitive radio has received much attention recently, in which the secondary users are able to sense the spectrum, analyze the spectrum statistics, and adjust their transmissions according to the time-varying environment [3]....
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7,058 citations
"Optimal multi-channel cooperative s..." refers background in this paper
..., the probability that, if there are no primary activities, the secondary users falsely estimate that primary users are active) [4]....
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2,889 citations
"Optimal multi-channel cooperative s..." refers background or methods or result in this paper
...Similar to [12], the system setup is as follows....
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...Similar to [12], r n (i) is assumed to be a zero mean CSCG random variable....
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...Then the average throughput of channel n can be expressed [12] as Cn(k, kn, εn) = T−kδ T ( Pr(H0 n) ( 1− P f n (kn, εn) ) R n...
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...This process is referred to as soft decisional cooperative spectrum sensing, and the detection probability and false alarm probability in the process are given [12] as...
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...The optimal tradeoff in sensing time setting is investigated in [12][13] so as to optimally utilize the transmission opportunities in a single channel....
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1,709 citations
"Optimal multi-channel cooperative s..." refers methods in this paper
...For spectrum sensing, a slotted time frame structure is widely used [8]–[11]....
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