Adaptive Double Threshold with Multiple Energy Detection Technique in Cognitive Radio
نویسندگان
چکیده
منابع مشابه
Adaptive Double Threshold with Multiple Energy Detection Technique in Cognitive Radio
The Cognitive Radio (CR) network is a system which lends help at the time of scarcity in spectrum. One of the process by which CR senses the spectrum is energy detection method with a fixed single threshold. When energy levels fall below the threshold, secondary user is permitted to use the spectrum of the primary user. It is shown by simulation results that having two levels of threshold i.e.,...
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Spectrum sensing is the main feature of cognitive radio technology. Spectrum sensing gives an idea of detecting the presence of the primary users in a licensed spectrum. The dynamic threshold energy detection is proposed in this paper for the spectrum sensing of Cognitive Radio. The proposed dynamic energy scheme depends on the current state of the primary user. Depending on this, dynamic thres...
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The rapid development in the area of cognitive radio technology leads the society to higher standards of spectrum sensing performance, particularly in low signal-to-noise ratio (SNR) environment. This article proposes an adaptive double-threshold energy sensing method based on Markov model (ADEMM). When using the double-threshold energy sensing method, the modified Markov model that accounts fo...
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In this paper, we propose a two-stage spectrum sensing (SS) scheme in cognitive radio networks (CRN). First stage consists of multiple antennas (M) based energy detector (ED) with fixed single threshold (MA_ED_FT) and if required, second stage comprised of ED with adaptive double threshold (ADT) is invoked. Numerical results show that proposed scheme optimizes detection performance and outperfo...
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Rapid growth of wireless communication and limited spectrum availability to support the applications and services, has led to the development of cognitive radio as promising solution to address the problem of spectrum scarcity. Spectrum sensing is one of the fundamental functions towards the implementation of the cognitive radio concept in wireless communication. In this paper, we present an ad...
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ژورنال
عنوان ژورنال: Research Journal of Applied Sciences, Engineering and Technology
سال: 2015
ISSN: 2040-7459,2040-7467
DOI: 10.19026/rjaset.10.1831