Results 11 to 20 of about 169,726 (308)
Performance analysis of spectrum sensing with multiple primary users [PDF]
, 2012 The effect of multiple primary users on spectrum-sensing performance is investigated. Different models for primary user traffic are considered. The effects of different system parameters on sensing accuracy are examined.
Jiang, Lingge +3 more
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Cognitive node selection and assignment algorithms for weighted cooperative sensing in radar systems [PDF]
, 2009 For the radar spectrum to be shared efficiently a good sensing capability within a secondary cognitive communication system is required. In this paper, the swept radar's rotation mechanism is explored to improve the sensing performance.
Williams, C +7 more
core +1 more source
A Secure and Anonymous Cooperative Sensing Protocol for Cognitive Radio Networks [PDF]
, 2011 Spectrum is an essential resource for the provision of mobile services. In order to control and delimit its use, governmental agencies set up regulatory policies.
Helena Rifà-Pous +3 more
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Implementation and Analysis of Adaptive Spectrum Sensing [PDF]
, 2021 The electromagnetic spectrum is a finite resource that has become increasingly crowded as the day-to-day operation of the world has become increasingly reliant on wireless devices. With the growing deployment of the Internet-of-Things (IoT), 5G Networks,
Mattingly, Rylee
core
Spectrum Sensing for Cognitive Radio [PDF]
Proceedings of the IEEE, 2009 Spectrum sensing is the very task upon which the entire operation of cognitive radio rests. For cognitive radio to fulfill the potential it offers to solve the spectrum underutilization problem and do so in a reliable and computationally feasible manner, we require a spectrum sensor that detects spectrum holes (i.e., underutilized subbands of the radio
Simon Haykin 0001 +2 more
openaire +1 more source
Reputation-Based Spectrum Sensing Strategy Selection in Cognitive Radio Ad Hoc Networks
Sensors, 2018 Spectrum sensing plays an essential role in the detection of unused spectrum whole in cognitive radio networks, including cooperative spectrum sensing (CSS) and independent spectrum sensing.
Zhiguo Sun +4 more
doaj +1 more source
ON THE LOCATION-AWARE COOPERATIVE SPECTRUM SENSING IN URBAN ENVIRONMENT [PDF]
Jordanian Journal of Computers and Information Technology, 2016 Spectrum sensing is a key enabling technology for cognitive radio networks (CRNs). The main objective of spectrum sensing is to provide more spectrum access opportunities to cognitive radio users without interfering with the operations of the licensed ...
Raouf Abozariba +3 more
doaj +1 more source
Optimization of Spectrum Utilization in Cooperative Spectrum Sensing
Sensors, 2019 This paper presents an analytical framework for the probability of spectrum hole utilization (PSHU) of a cognitive radio system with soft cooperative spectrum sensing (CSS) under a practical consideration of fixed frame structure. In practical systems, the length of a time-frame is generally fixed, where the time-frame consists of sensing, reporting ...
Mohsin Ali, Haewoon Nam
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Adaptive spectrum sensing and estimation [PDF]
2013 IEEE International Conference on Acoustics, Speech and Signal Processing, 2013 We propose a multistage adaptive approach to spectrum sensing and estimation with the goal of concentrating more sensing resources on spectral components of interest. The allocation of resources to minimize the mean squared estimation error is formulated as a dynamic program. An optimal policy is given for the case of two sensing stages.
Dennis L. Wei, Alfred O. Hero III
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Advanced Energy Detector Based Cooperative Spectrum Sensing In Cognitive Networks
MATEC Web of Conferences, 2016 Cognitive radio is a befitting hopeful technology for future. Spectrum sensing is the most critical function of cognitive radio. Most of the spectrums sensing processes proposed earlier become impractical at lower signal to noise ratio conditions.
Ritu, Seehra Ameeta
doaj +1 more source