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Different sensing durationsbased cooperative spectrum ...

spectrum sensing independently and then forwards their sensing results to the base station (BS) through the reporting channels between the cognitive users and BS [6]. In practice, the reporting channels are always subject to the fading effects [7]. It is shown in [8,9] that the cooperative sensing will achieve no benefits when the reporting chan nels become very noisy. In order to alleviate ...


GitHub seotaijiya/Cooperativespectrumsensing

· Cooperativespectrumsensing. Use Git or checkout with SVN using the web URL. Work fast with our official CLI. Learn more . If nothing happens, download GitHub Desktop and try again. If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. Your codespace will open once ready.


(PPT) Cooperative spectrum sensing in cognitive radio ...

Cooperative spectrum sensing in cognitive radio Aminmohammad Roozgard Users • Primary User (PU) • Secondary User (SU) • Cognitive Radio(CR) Definition • Probability of False alarm: Pfa – probability of a CR user declaring that a PU is present when the spectrum is actually free PD • Probability of detection: – probability of a CR user declaring that a PU is present when the ...


Optimisation of virtual cooperative spectrum sensing for ...

In contrast to the ground spectrum sensing, the channel from the UAVbased CR to the ground PU can be seen as line of sight (LOS); thus, the detection performance degradation caused by the severe ground fading can be ignored in the UAV spectrum sensing. That is to say, the singleuser spectrum sensing may achieve better detection performance in the UAV environment than in the ground ...


Cooperative Spectrum Sensing Technique | Semantic Scholar

Cognitive Radios (CRs), which sense the spectrum and implement opportunistic sharing when no licensed user is found to use it, are able to improve the efficiency of spectrum. Spectrum sensing must be firstly solved in CRs. Cooperative sensing can make good use of network resources, obtain higher gain and make the network steadier. In this paper we give a brief introduction of the principle of ...


Enhancement of Spectrum Sensing Performance via ...

Spectrum Sensing (namely, OR, AND, and VH rules) and comparing them to the non cooperative cognitive system , thus deducing the effects on the detection efficiency under specific conditions . AND _ Rule The AND – rule takes the decision about the presence of the primary signal if all CR users detect it. The test that is using the cooperative AND rule can be defined as [10] K H 1 : ∑ ...


Clustering scheme for cooperative spectrum sensing in ...

· For cognitive radio (CR), cooperation in spectrum sensing (SS) using energy detection can increase the detection of primary user signal. However, it also brings extra cooperative sensing overhead due to mutual exchange of large information among CR users. To reduce cooperative sensing overhead and improve sensing performance, the authors propose a novel clustering scheme consists …


A Cooperative Spectrum Sensing Method Based on Empirical ...

In a complex electromagnetic environment, there are cases where the noise is uncertain and difficult to estimate, which poses a great challenge to spectrum sensing systems. This paper proposes a cooperative spectrum sensing method based on empirical mode decomposition and information geometry. The method mainly includes two modules, a signal feature extraction module and a spectrum sensing ...


Joint cooperative spectrum sensing and channel selection ...

· Compared with the traditional singleuser spectrumsensing algorithm, the cooperative spectrum sensing is able to cope with the interference to the primary user caused by a secondary user better. In addition, multiple earth stations that use some part of the bandwidth cooperatively to perform spectrum sensing throughout the whole frame can detect the presence of primary user in time. The ...


[] Deep Sensing: Cooperative Spectrum Sensing ...

· In this paper, we investigate cooperative spectrum sensing (CSS) in a cognitive radio network (CRN) where multiple secondary users (SUs) cooperate in order to detect a primary user (PU) which possibly occupies multiple bands simultaneously. Deep cooperative sensing (DCS), which constitutes the first CSS framework based on a convolutional neural network (CNN), is proposed. In …


Optimal linear weighted cooperative spectrum sensing for ...

mal linear weighted cooperative spectrum sensing for clusteredbased cognitive radio networks is proposed. In this scheme, dierent weight values will be assigned for cooperative nodes according to the SNR of cognitive users and the historical sensing accuracy [6]. In addition, the cognitive users can be clustered, and the users with the better channel characteristics will be selected as ...


Throughput performance of cooperative spectrum sensing ...

· Spectrum sensing is the prerequisite of opportunistic spectrum access in cognitive sensor networks (CSNs) as its reliability determines the success of transmission. However, spectrum sensing …


GitHub shivangianeja/CooperativeSpectrumSensingUsing ...

CooperativeSpectrumSensingUsingCognitiveRadio. Use Git or checkout with SVN using the web URL. Work fast with our official CLI. Learn more . If nothing happens, download GitHub Desktop and try again. If nothing happens, download GitHub Desktop and try …


Dynamic dual threshold cooperative spectrum sensing for ...

· The spectrum sensing performance depends on the accuracy of the detection about whether primary users are busy or idle. Previous studies on cognitive radio spectrum sensing have shown that the cooperation between secondary users can improve their spectrum detection performance in real cognitive networks. Aiming at the problem of threshold mismatch of energy detectors under …


Quantized Cooperative Spectrum Sensing in Bandwidth ...

The output of the network in a deep learning (DL) based singleuser signal detector, which is a normalized 2 × 1 class score vector, needs to be transmitted to the fusion center (FC) by occupying a large amount of the communication channel (CCH) bandwidth in the cooperative spectrum sensing (CSS). Obviously, in cognitive radio for vehicle to everything (CRV2X), it is particularly important ...