Throughput Optimization for Cooperative Spectrum Sensing in Cognitive Radio Networks

Teguig, Djamal; Scheers, Bart; Nir, Vincent Le

doi:10.1109/ngmast.2013.50

Cited by 34 publications

(29 citation statements)

References 16 publications

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“…It is also important to note that most of the research efforts on different fusion rules for cooperative sensing are analytical and/or Matlab simulations based [3]- [5]. Recently a few measurement-based studies on cooperative sensing can be found in [6]- [8].…”

Section: This Paper Is a Revised And Expanded Version Of The Paper Prmentioning

confidence: 99%

Evaluation of Kolmogorov - Smirnov test and energy detector techniques for cooperative spectrum sensing in real channel conditions

Lekomtcev

Mars̆álek

2015

Telfor

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-The cognitive radio technology allows solving one of the main issues of current wireless communication technologies, namely a deficit of vacant spectrum. A dynamic spectrum access used in the cognitive radio networks (CRN) gives an ability to access an unused spectrum in real time. Cooperative spectrum sensing is the most effective method for spectrum holes detecting. It combines sensing information of multiple cognitive radio users. In this paper, an experimental evaluation of spectrum sensing methods based on the Kolmogorov -Smirnov statistical test and Energy Detector using the Universal Software Radio Peripheral (USRP) devices synchronized through a MIMO cable and with further processing in the GNU Radio and Matlab software are presented. Three hard decision fusion schemes are analyzed. Simulation comparison between these rules is presented via Receiver Operating Characteristic (ROC) curves. The influence of real channel with interferences is compared in contrast to commonly assumed AWGN channel model of vacant channel noise.

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Section: This Paper Is a Revised And Expanded Version Of The Paper Prmentioning

confidence: 99%

Evaluation of Kolmogorov - Smirnov test and energy detector techniques for cooperative spectrum sensing in real channel conditions

Lekomtcev

Mars̆álek

2015

Telfor

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“…In the propose model we have used OR rule because it has better detection performance when the number of cooperating CR users is large. [12], and provides slightly better performance at low Pf [13].…”

Section: Introductionmentioning

confidence: 97%

Novel Spectrum detector for IEEE 802.22 Wireless Regional Area Network

Bagwari¹,

Kanti²,

Tomar³

2015

IJSDA

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“…DFC combines those decisions and makes a final decision [18]. Different conventional diversity techniques are used to combine the independent decision which are discussed in [19] and [20]. In this paper, we have considered Maximal Ratio Combining (MRC) scheme with Energy and Bayesian detection.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Bayesian and Energy Detection Including MRC Under Fading Environment in Collaborative Cognitive Radio Network

Zaman¹,

Khan²,

Islam³

2017

ijacsa

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Abstract-The most important component of Cognitive RadioNetwork (CRN) is to sense the underutilised spectrum efficiently in fading environment for incorporating the increasing demand of wireless applications. The result of spectrum sensing can be affected by incorrect detection of the existence of Primary User (PU). In this paper, we have considered Collaborative spectrum sensing to maximise the spectrum utilisation of Cognitive Radio (CR) user. We proposed a new architecture and algorithm that shows the step by step spectrum sensing procedure using Energy detection and Bayesian detection in collaborative environment for an optimal number of users. This algorithm also includes Maximal Ratio Combining (MRC) diversity techniques in fusion centre to make a final decision under fading condition. The simulation result shows the significant optimisation of detection performance with less misdetection for large number of users. It is also observed that MRC produces better results in collaborative manner under Nakagami-m, Rayleigh and Normal fading. Finally in this paper, we have analysed the relative performance of different wireless channels for various SNR levels and from that analysis it concludes that ED technique works better in high SNR and BD technique works for low SNR.

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Throughput Optimization for Cooperative Spectrum Sensing in Cognitive Radio Networks

Cited by 34 publications

References 16 publications

Evaluation of Kolmogorov - Smirnov test and energy detector techniques for cooperative spectrum sensing in real channel conditions

Evaluation of Kolmogorov - Smirnov test and energy detector techniques for cooperative spectrum sensing in real channel conditions

Novel Spectrum detector for IEEE 802.22 Wireless Regional Area Network

Comparative Study of Bayesian and Energy Detection Including MRC Under Fading Environment in Collaborative Cognitive Radio Network

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