Performance of Cooperative Spectrum Sensing in Cognitive Radio - Sudhamani, Chilakala
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In CSS, as the number of cooperative secondary users increases the energy required for spectrum sensing and reporting sensing results to the fusion center increases,which increases the energy consumption and reduces the energy efficiency. Therefore energy efficiency can be improved by maximizing the average channel throughput or by minimizing the energy consumption. To minimize the energy consumption in cooperative spectrum sensing, optimization technique has been proposed in this thesis and it is used for further improvement of energy efficiency. With this optimization technique, optimal…mehr

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Produktbeschreibung
In CSS, as the number of cooperative secondary users increases the energy required for spectrum sensing and reporting sensing results to the fusion center increases,which increases the energy consumption and reduces the energy efficiency. Therefore energy efficiency can be improved by maximizing the average channel throughput or by minimizing the energy consumption. To minimize the energy consumption in cooperative spectrum sensing, optimization technique has been proposed in this thesis and it is used for further improvement of energy efficiency. With this optimization technique, optimal number of cooperative secondary users are derived by maximizing the energy efficiency using AND and OR fusion rules but not with MAJORITY fusion rule. Because it is very difficult to estimate the optimal number of cooperative secondary users using MAJORITY fusion rule, so optimization of final decision threshold was proposed in the existing methods to maximize the energy efficiency using MAJORITY fusion rule. Therefore AND and OR fusion rules are used in this work to optimize the number of cooperative secondary users.
Autorenporträt
I am sudhamani working as associate professor in CMR Technical Campus, Hyderabad. Completed my PhD in wireless communications with a thesis title of Performance of Cooperative Spectrum Sensing in Cognitive Radio Networks. My research interest are Wireless Communications, Signal Processing, Digital Circuits, etc...