spectrum sensing algorithm
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spectrum sensing algorithm




A spectrum sensing algorithm based on distributed cognitive models
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ABSTRACT In the last years, an increasing attention of the communications researchers has been focused on the Cognitive Radio (CR) concept and on its possible supporting technologies and applications. The proposed approach deals the problem of information 

Cooperative Spectrum Sensing and Weighted-Clustering Algorithm for Cognitive Radio Network
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ABSTRACT Cognitive radio is a promising technique for efficient utilization of idle authorized spectrum since it is able to sense the spectrum and reuse the frequency when the primary user is absent. In order to overcome the fading, shadowing or hidden terminals in 

022. The Spectrum Sensing Algorithm Using the Soft Decision Algorithm in Cognitive UWB System Jae Ho Hwang, Jong Seok
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ABSTRACT In this paper, sensing algorithms to select the available sub-bands in the cognitive UWB system are proposed; grouped time division sensing technique and decision methods for sub-channel selection. We employ energy detection method for spectrum sensing, 

Spectrum Sensing Time Optimization Algorithm for Spectrum Efficiency Maximization in the Low-power Cognitive Radio Ultra Wideband System
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ABSTRACT For energy detection in a cognitive radio (CR) system, the spectrum sensing time required to successfully detect a primary user (PU) is inversely proportional to the PU's signal strength. When the PU operates in low-SNR regime, the effective transmission time 

Adaptive Spectrum Sensing Algorithm for Cognitive Radio System
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ABSTRACT Spectrum sensing is a critical functionality of Cognitive Radio (CR) systems. There are number of spectrum sensing techniques. One of techniques is energy detection. Energy detection is the simplest detection method and is the most commonly used. But, energy 

A novel spectrum sensing algorithm in cognitive radio
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ABSTRACT Detecting the presence of primary users in a licensed spectrum is the very task upon which the entire operation of cognitive radio rests. The paper proposes a fast novel spectrum sensing algorithm for cognitive radios based on cyclic autocorrelation. The 

An Optimization Algorithm of Cooperative Spectrum Sensing in Cognitive Radio Networks?
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ABSTRACT By taking into account the reporting channel fading and the differences in the reliability of the decisions made by different secondary users (SUs), a general performance analysis of cooperative spectrum sensing are given. The analysis results show that the 

Flexibly Cooperative Spectrum Sensing and Allocation in Cognitive Radio Networks: Auction-based Framework and Algorithm Design
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ABSTRACT Cognitive radio networks have made a dramatic shift towards variously cooperative paradigm to achieve fast, reliable spectrum sensing and effective spectrum usage in recent past. In this paper, we develop a Flexibly Cooperative Spectrum Sensing 

A Novel Algorithm for Cooperative Distributed Sequential Spectrum Sensing in CognitiveRadio
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ABSTRACT This paper considers cooperative spectrum sensing in Cognitive Radios. In our previous work we have developed DualSPRT, a distributed algorithm for cooperative spectrum sensing using Sequential Probability Ratio Test (SPRT) at the Cognitive Radios 


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